138124030436 has 36 divisors (see below), whose sum is σ = 281215691568. Its totient is φ = 59188722768.

The previous prime is 138124030417. The next prime is 138124030441. The reversal of 138124030436 is 634030421831.

It is a junction number, because it is equal to n+sod(n) for n = 138124030396 and 138124030405.

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, 1738271 + ... + 1815993.

It is an arithmetic number, because the mean of its divisors is an integer number (7811546988).

Almost surely, 2^138124030436 is an apocalyptic number.

It is an amenable number.

138124030436 is an abundant number, since it is smaller than the sum of its proper divisors (143091661132).

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

138124030436 is a wasteful number, since it uses less digits than its factorization.

138124030436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86808 (or 86799 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 138124030436 in words is "one hundred thirty-eight billion, one hundred twenty-four million, thirty thousand, four hundred thirty-six".