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768069948671 = 7110817886601
BaseRepresentation
bin10110010110101001000…
…10010101010011111111
32201102112010010001220222
423023110202111103333
5100041001401324141
61344502500331555
7106330326562244
oct13132442252377
92642463101828
10768069948671
1127681150a623
12104a350a3bbb
1357575a8b58c
142926386d5cb
1514ea502114b
hexb2d48954ff

768069948671 has 4 divisors (see below), whose sum is σ = 778887835344. Its totient is φ = 757252062000.

The previous prime is 768069948661. The next prime is 768069948673. The reversal of 768069948671 is 176849960867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176849960867 = 181977071607.

It is not a de Polignac number, because 768069948671 - 234 = 750890079487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71), and also a Moran number because the ratio is a prime number: 10817886601 = 768069948671 / (7 + 6 + 8 + 0 + 6 + 9 + 9 + 4 + 8 + 6 + 7 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 768069948595 and 768069948604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768069948673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5408943230 + ... + 5408943371.

It is an arithmetic number, because the mean of its divisors is an integer number (194721958836).

Almost surely, 2768069948671 is an apocalyptic number.

768069948671 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

768069948671 is a deficient number, since it is larger than the sum of its proper divisors (10817886673).

768069948671 is a wasteful number, since it uses less digits than its factorization.

768069948671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10817886672.

The product of its (nonzero) digits is 219469824, while the sum is 71.

The spelling of 768069948671 in words is "seven hundred sixty-eight billion, sixty-nine million, nine hundred forty-eight thousand, six hundred seventy-one".

Divisors: 1 71 10817886601 768069948671