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6468749467 = 14934332719
BaseRepresentation
bin1100000011001000…
…10100100010011011
3121200211002112001121
412001210110202123
5101221444440332
62545515430111
7316205314615
oct60144244233
917624075047
106468749467
11281a493244
121306455337
137c122b90b
1445518bdb5
1527cd7b797
hex18191489b

6468749467 has 4 divisors (see below), whose sum is σ = 6473083680. Its totient is φ = 6464415256.

The previous prime is 6468749429. The next prime is 6468749489. The reversal of 6468749467 is 7649478646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7649478646 = 23824739323.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6468749467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6468749267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2164867 + ... + 2167852.

It is an arithmetic number, because the mean of its divisors is an integer number (1618270920).

Almost surely, 26468749467 is an apocalyptic number.

6468749467 is a deficient number, since it is larger than the sum of its proper divisors (4334213).

6468749467 is a wasteful number, since it uses less digits than its factorization.

6468749467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334212.

The product of its digits is 48771072, while the sum is 61.

The square root of 6468749467 is about 80428.5363972266. The cubic root of 6468749467 is about 1863.2599272551.

The spelling of 6468749467 in words is "six billion, four hundred sixty-eight million, seven hundred forty-nine thousand, four hundred sixty-seven".

Divisors: 1 1493 4332719 6468749467