76988018677656 has 64 divisors (see below), whose sum is σ = 192577767782400. Its totient is φ = 25648314156288.

The previous prime is 76988018677649. The next prime is 76988018677699. The reversal of 76988018677656 is 65677681088967.

It is a super-2 number, since 2×76988018677656² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310915065 + ... + 311162583.

It is an arithmetic number, because the mean of its divisors is an integer number (3009027621600).

Almost surely, 2^{76988018677656} is an apocalyptic number.

It is an amenable number.

76988018677656 is an abundant number, since it is smaller than the sum of its proper divisors (115589749104744).

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

76988018677656 is a wasteful number, since it uses less digits than its factorization.

76988018677656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254728 (or 254724 counting only the distinct ones).

The product of its (nonzero) digits is 10241925120, while the sum is 84.

The spelling of 76988018677656 in words is "seventy-six trillion, nine hundred eighty-eight billion, eighteen million, six hundred seventy-seven thousand, six hundred fifty-six".