74772439932 has 12 divisors (see below), whose sum is σ = 174469026536. Its totient is φ = 24924146640.

The previous prime is 74772439891. The next prime is 74772439933. The reversal of 74772439932 is 23993427747.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74772439933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3115518319 + ... + 3115518342.

Almost surely, 2^74772439932 is an apocalyptic number.

It is an amenable number.

74772439932 is an abundant number, since it is smaller than the sum of its proper divisors (99696586604).

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

74772439932 is a wasteful number, since it uses less digits than its factorization.

74772439932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231036668 (or 6231036666 counting only the distinct ones).

The product of its digits is 16003008, while the sum is 57.

The spelling of 74772439932 in words is "seventy-four billion, seven hundred seventy-two million, four hundred thirty-nine thousand, nine hundred thirty-two".