124995972438 has 24 divisors (see below), whose sum is σ = 272337600600. Its totient is φ = 41432555904.

The previous prime is 124995972389. The next prime is 124995972511. The reversal of 124995972438 is 834279599421.

124995972438 is a `hidden beast` number, since 1 + 2 + 4 + 9 + 9 + 597 + 2 + 4 + 38 = 666.

It is a congruent number.

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, 19394043 + ... + 19400486.

It is an arithmetic number, because the mean of its divisors is an integer number (11347400025).

Almost surely, 2^124995972438 is an apocalyptic number.

124995972438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

124995972438 is an abundant number, since it is smaller than the sum of its proper divisors (147341628162).

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

124995972438 is a wasteful number, since it uses less digits than its factorization.

124995972438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38794716 (or 38794713 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 124995972438 in words is "one hundred twenty-four billion, nine hundred ninety-five million, nine hundred seventy-two thousand, four hundred thirty-eight".