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68262674873 = 380317949691
BaseRepresentation
bin111111100100110001…
…011100000110111001
320112012100021011211112
4333210301130012321
52104300221043443
651205350010105
74634420106551
oct774461340671
9215170234745
1068262674873
1126a4a555a88
1211291046935
13658b52cc13
143437db6161
151b97d37b18
hexfe4c5c1b9

68262674873 has 4 divisors (see below), whose sum is σ = 68280628368. Its totient is φ = 68244721380.

The previous prime is 68262674863. The next prime is 68262674903. The reversal of 68262674873 is 37847626286.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68262674873 - 222 = 68258480569 is a prime.

It is a super-2 number, since 2×682626748732 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68262674833) 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, 8971043 + ... + 8978648.

It is an arithmetic number, because the mean of its divisors is an integer number (17070157092).

Almost surely, 268262674873 is an apocalyptic number.

It is an amenable number.

68262674873 is a deficient number, since it is larger than the sum of its proper divisors (17953495).

68262674873 is a wasteful number, since it uses less digits than its factorization.

68262674873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17953494.

The product of its digits is 32514048, while the sum is 59.

The spelling of 68262674873 in words is "sixty-eight billion, two hundred sixty-two million, six hundred seventy-four thousand, eight hundred seventy-three".

Divisors: 1 3803 17949691 68262674873