124399681344 has 42 divisors (see below), whose sum is σ = 356569227170. Its totient is φ = 41466560256.

The previous prime is 124399681337. The next prime is 124399681447. The reversal of 124399681344 is 443186993421.

124399681344 is a `hidden beast` number, since 1 + 2 + 439 + 96 + 81 + 3 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 117161074944 + 7238606400 = 342288^2 + 85080^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107985259 + ... + 107986410.

Almost surely, 2^124399681344 is an apocalyptic number.

It is an amenable number.

124399681344 is an abundant number, since it is smaller than the sum of its proper divisors (232169545826).

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

124399681344 is a wasteful number, since it uses less digits than its factorization.

124399681344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215971687 (or 215971674 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 124399681344 in words is "one hundred twenty-four billion, three hundred ninety-nine million, six hundred eighty-one thousand, three hundred forty-four".