117391635126 has 20 divisors (see below), whose sum is σ = 263044219812. Its totient is φ = 39130544988.

The previous prime is 117391635107. The next prime is 117391635149. The reversal of 117391635126 is 621536193711.

117391635126 is a `hidden beast` number, since 1 + 1 + 7 + 3 + 9 + 1 + 635 + 1 + 2 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 362319700 + ... + 362320023.

Almost surely, 2^117391635126 is an apocalyptic number.

117391635126 is an abundant number, since it is smaller than the sum of its proper divisors (145652584686).

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

117391635126 is an equidigital number, since it uses as much as digits as its factorization.

117391635126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724639737 (or 724639728 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The spelling of 117391635126 in words is "one hundred seventeen billion, three hundred ninety-one million, six hundred thirty-five thousand, one hundred twenty-six".