74957438020 has 24 divisors (see below), whose sum is σ = 166670068824. Its totient is φ = 28219270656.

The previous prime is 74957437993. The next prime is 74957438033. The reversal of 74957438020 is 2083475947.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26384804356 + 48572633664 = 162434^2 + 220392^2 .

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, 110231187 + ... + 110231866.

It is an arithmetic number, because the mean of its divisors is an integer number (6944586201).

Almost surely, 2^74957438020 is an apocalyptic number.

It is an amenable number.

74957438020 is an abundant number, since it is smaller than the sum of its proper divisors (91712630804).

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

74957438020 is a wasteful number, since it uses less digits than its factorization.

74957438020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220463079 (or 220463077 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 74957438020 in words is "seventy-four billion, nine hundred fifty-seven million, four hundred thirty-eight thousand, twenty".