68471925957 has 36 divisors (see below), whose sum is σ = 103446374304. Its totient is φ = 43639889040.

The previous prime is 68471925919. The next prime is 68471925959. The reversal of 68471925957 is 75952917486.

68471925957 is a `hidden beast` number, since 68 + 471 + 9 + 2 + 59 + 57 = 666.

It is not a de Polignac number, because 68471925957 - 2²⁰ = 68470877381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68471925894 and 68471925903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68471925959) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15190098 + ... + 15194604.

Almost surely, 2^68471925957 is an apocalyptic number.

It is an amenable number.

68471925957 is a deficient number, since it is larger than the sum of its proper divisors (34974448347).

68471925957 is a wasteful number, since it uses less digits than its factorization.

68471925957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7750 (or 7724 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 63.

The spelling of 68471925957 in words is "sixty-eight billion, four hundred seventy-one million, nine hundred twenty-five thousand, nine hundred fifty-seven".