74520673456 has 40 divisors (see below), whose sum is σ = 146378488320. Its totient is φ = 36746658624.

The previous prime is 74520673429. The next prime is 74520673481. The reversal of 74520673456 is 65437602547.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087935 + ... + 1154401.

It is an arithmetic number, because the mean of its divisors is an integer number (3659462208).

Almost surely, 2^74520673456 is an apocalyptic number.

It is an amenable number.

74520673456 is a deficient number, since it is larger than the sum of its proper divisors (71857814864).

74520673456 is a wasteful number, since it uses less digits than its factorization.

74520673456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67441 (or 67435 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 74520673456 in words is "seventy-four billion, five hundred twenty million, six hundred seventy-three thousand, four hundred fifty-six".