76923974840 has 32 divisors (see below), whose sum is σ = 175449894480. Its totient is φ = 30348087552.

The previous prime is 76923974837. The next prime is 76923974857. The reversal of 76923974840 is 4847932967.

It is a self number, because there is not a number n which added to its sum of digits gives 76923974840.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13168994 + ... + 13174833.

Almost surely, 2^76923974840 is an apocalyptic number.

It is an amenable number.

76923974840 is an abundant number, since it is smaller than the sum of its proper divisors (98525919640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76923974840 is a wasteful number, since it uses less digits than its factorization.

76923974840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26343911 (or 26343907 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 76923974840 in words is "seventy-six billion, nine hundred twenty-three million, nine hundred seventy-four thousand, eight hundred forty".