74172747204 has 36 divisors (see below), whose sum is σ = 187779405996. Its totient is φ = 24686378688.

The previous prime is 74172747169. The next prime is 74172747211. The reversal of 74172747204 is 40274727147.

74172747204 is a `hidden beast` number, since 7 + 4 + 172 + 7 + 472 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24461585604 + 49711161600 = 156402^2 + 222960^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 74172747204.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1554099 + ... + 1601114.

It is an arithmetic number, because the mean of its divisors is an integer number (5216094611).

Almost surely, 2^74172747204 is an apocalyptic number.

It is an amenable number.

74172747204 is an abundant number, since it is smaller than the sum of its proper divisors (113606658792).

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

74172747204 is a wasteful number, since it uses less digits than its factorization.

74172747204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155876 (or 3155871 counting only the distinct ones).

The product of its (nonzero) digits is 614656, while the sum is 45.

The spelling of 74172747204 in words is "seventy-four billion, one hundred seventy-two million, seven hundred forty-seven thousand, two hundred four".