74997782494656 has 112 divisors (see below), whose sum is σ = 228280857331200. Its totient is φ = 21286030924800.

The previous prime is 74997782494639. The next prime is 74997782494717. The reversal of 74997782494656 is 65649428779947.

74997782494656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184571631 + ... + 184977518.

Almost surely, 2^{74997782494656} is an apocalyptic number.

It is an amenable number.

74997782494656 is an abundant number, since it is smaller than the sum of its proper divisors (153283074836544).

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

74997782494656 is a wasteful number, since it uses less digits than its factorization.

74997782494656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369549322 (or 369549312 counting only the distinct ones).

The product of its digits is 46088663040, while the sum is 87.

The spelling of 74997782494656 in words is "seventy-four trillion, nine hundred ninety-seven billion, seven hundred eighty-two million, four hundred ninety-four thousand, six hundred fifty-six".