69389376957 has 6 divisors (see below), whose sum is σ = 100229100062. Its totient is φ = 46259584632.

The previous prime is 69389376941. The next prime is 69389376961. The reversal of 69389376957 is 75967398396.

69389376957 is a `hidden beast` number, since 6 + 93 + 89 + 376 + 95 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 68549188761 + 840188196 = 261819^2 + 28986^2 .

It is not a de Polignac number, because 69389376957 - 2⁴ = 69389376941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69389376977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3854965378 + ... + 3854965395.

Almost surely, 2^69389376957 is an apocalyptic number.

It is an amenable number.

69389376957 is a deficient number, since it is larger than the sum of its proper divisors (30839723105).

69389376957 is a wasteful number, since it uses less digits than its factorization.

69389376957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709930779 (or 7709930776 counting only the distinct ones).

The product of its digits is 462944160, while the sum is 72.

The spelling of 69389376957 in words is "sixty-nine billion, three hundred eighty-nine million, three hundred seventy-six thousand, nine hundred fifty-seven".