74968939820 has 24 divisors (see below), whose sum is σ = 157445213184. Its totient is φ = 29985587456.

The previous prime is 74968939819. The next prime is 74968939907. The reversal of 74968939820 is 2893986947.

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, 206324 + ... + 438756.

It is an arithmetic number, because the mean of its divisors is an integer number (6560217216).

Almost surely, 2^74968939820 is an apocalyptic number.

It is an amenable number.

74968939820 is an abundant number, since it is smaller than the sum of its proper divisors (82476273364).

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

74968939820 is a wasteful number, since it uses less digits than its factorization.

74968939820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248569 (or 248567 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 74968939820 in words is "seventy-four billion, nine hundred sixty-eight million, nine hundred thirty-nine thousand, eight hundred twenty".