74691037428 has 24 divisors (see below), whose sum is σ = 199176100032. Its totient is φ = 21340296384.

The previous prime is 74691037417. The next prime is 74691037459. The reversal of 74691037428 is 82473019647.

It is a congruent number.

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, 444589425 + ... + 444589592.

It is an arithmetic number, because the mean of its divisors is an integer number (8299004168).

Almost surely, 2^74691037428 is an apocalyptic number.

It is an amenable number.

74691037428 is an abundant number, since it is smaller than the sum of its proper divisors (124485062604).

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

74691037428 is a wasteful number, since it uses less digits than its factorization.

74691037428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889179031 (or 889179029 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 74691037428 in words is "seventy-four billion, six hundred ninety-one million, thirty-seven thousand, four hundred twenty-eight".