74154770020 has 24 divisors (see below), whose sum is σ = 155777034168. Its totient is φ = 29652000000.

The previous prime is 74154770017. The next prime is 74154770033. The reversal of 74154770020 is 2007745147.

It can be written as a sum of positive squares in 4 ways, for example, as 14568007204 + 59586762816 = 120698^2 + 244104^2 .

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, 557731 + ... + 677770.

It is an arithmetic number, because the mean of its divisors is an integer number (6490709757).

Almost surely, 2^74154770020 is an apocalyptic number.

It is an amenable number.

74154770020 is an abundant number, since it is smaller than the sum of its proper divisors (81622264148).

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

74154770020 is a wasteful number, since it uses less digits than its factorization.

74154770020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238511 (or 1238509 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 37.

The spelling of 74154770020 in words is "seventy-four billion, one hundred fifty-four million, seven hundred seventy thousand, twenty".