123574039272 has 48 divisors (see below), whose sum is σ = 346220374500. Its totient is φ = 39770954496.

The previous prime is 123574039247. The next prime is 123574039327. The reversal of 123574039272 is 272930475321.

123574039272 is a `hidden beast` number, since 1 + 2 + 3 + 574 + 0 + 3 + 9 + 2 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123407474436 + 166564836 = 351294^2 + 12906^2 .

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, 29589397 + ... + 29593572.

Almost surely, 2^123574039272 is an apocalyptic number.

123574039272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123574039272 is an abundant number, since it is smaller than the sum of its proper divisors (222646335228).

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

123574039272 is a wasteful number, since it uses less digits than its factorization.

123574039272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59183010 (or 59183003 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 123574039272 in words is "one hundred twenty-three billion, five hundred seventy-four million, thirty-nine thousand, two hundred seventy-two".