74115931828 has 6 divisors (see below), whose sum is σ = 129702880706. Its totient is φ = 37057965912.

The previous prime is 74115931817. The next prime is 74115931829. The reversal of 74115931828 is 82813951147.

It can be written as a sum of positive squares in only one way, i.e., 56277123984 + 17838807844 = 237228^2 + 133562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74115931829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9264491475 + ... + 9264491482.

Almost surely, 2^74115931828 is an apocalyptic number.

It is an amenable number.

74115931828 is a deficient number, since it is larger than the sum of its proper divisors (55586948878).

74115931828 is a wasteful number, since it uses less digits than its factorization.

74115931828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18528982961 (or 18528982959 counting only the distinct ones).

The product of its digits is 483840, while the sum is 49.

The spelling of 74115931828 in words is "seventy-four billion, one hundred fifteen million, nine hundred thirty-one thousand, eight hundred twenty-eight".