138287724324 has 24 divisors (see below), whose sum is σ = 327091514400. Its totient is φ = 45464457024.

The previous prime is 138287724307. The next prime is 138287724347. The reversal of 138287724324 is 423427782831.

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, 78930474 + ... + 78932225.

It is an arithmetic number, because the mean of its divisors is an integer number (13628813100).

Almost surely, 2^138287724324 is an apocalyptic number.

It is an amenable number.

138287724324 is an abundant number, since it is smaller than the sum of its proper divisors (188803790076).

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

138287724324 is a wasteful number, since it uses less digits than its factorization.

138287724324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157862779 (or 157862777 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 51.

The spelling of 138287724324 in words is "one hundred thirty-eight billion, two hundred eighty-seven million, seven hundred twenty-four thousand, three hundred twenty-four".