137888939556 has 81 divisors (see below), whose sum is σ = 351442949403. Its totient is φ = 45584961840.

The previous prime is 137888939521. The next prime is 137888939599. The reversal of 137888939556 is 655939888731.

The square root of 137888939556 is 371334.

It is a perfect power (a square), and thus also a powerful number.

137888939556 is a `hidden beast` number, since 1 + 37 + 8 + 8 + 8 + 9 + 39 + 556 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 443372641 + ... + 443372951.

Almost surely, 2^137888939556 is an apocalyptic number.

137888939556 is the 371334-th square number.

It is an amenable number.

137888939556 is an abundant number, since it is smaller than the sum of its proper divisors (213554009847).

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

137888939556 is an equidigital number, since it uses as much as digits as its factorization.

137888939556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 515 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 72.

It can be divided in two parts, 137888 and 939556, that added together give a square (1077444 = 1038²).

The spelling of 137888939556 in words is "one hundred thirty-seven billion, eight hundred eighty-eight million, nine hundred thirty-nine thousand, five hundred fifty-six".