74078978232 has 64 divisors (see below), whose sum is σ = 212921694720. Its totient is φ = 21038675328.

The previous prime is 74078978213. The next prime is 74078978249. The reversal of 74078978232 is 23287987047.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1292143 + ... + 1348254.

It is an arithmetic number, because the mean of its divisors is an integer number (3326901480).

Almost surely, 2^74078978232 is an apocalyptic number.

It is an amenable number.

74078978232 is an abundant number, since it is smaller than the sum of its proper divisors (138842716488).

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

74078978232 is a wasteful number, since it uses less digits than its factorization.

74078978232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640580 (or 2640576 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 57.

The spelling of 74078978232 in words is "seventy-four billion, seventy-eight million, nine hundred seventy-eight thousand, two hundred thirty-two".