117257363820 has 36 divisors (see below), whose sum is σ = 355680670800. Its totient is φ = 31268630304.

The previous prime is 117257363807. The next prime is 117257363849. The reversal of 117257363820 is 28363752711.

117257363820 is a `hidden beast` number, since 1 + 1 + 7 + 2 + 5 + 7 + 3 + 638 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 325714720 + ... + 325715079.

Almost surely, 2^117257363820 is an apocalyptic number.

117257363820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117257363820 is an abundant number, since it is smaller than the sum of its proper divisors (238423306980).

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

117257363820 is a wasteful number, since it uses less digits than its factorization.

117257363820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651429814 (or 651429809 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 117257363820 in words is "one hundred seventeen billion, two hundred fifty-seven million, three hundred sixty-three thousand, eight hundred twenty".