117808321972 has 24 divisors (see below), whose sum is σ = 224916491520. Its totient is φ = 53546928960.

The previous prime is 117808321957. The next prime is 117808322033. The reversal of 117808321972 is 279123808711.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1373368 + ... + 1456624.

It is an arithmetic number, because the mean of its divisors is an integer number (9371520480).

Almost surely, 2^117808321972 is an apocalyptic number.

It is an amenable number.

117808321972 is a deficient number, since it is larger than the sum of its proper divisors (107108169548).

117808321972 is a wasteful number, since it uses less digits than its factorization.

117808321972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115431 (or 115429 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 49.

The spelling of 117808321972 in words is "one hundred seventeen billion, eight hundred eight million, three hundred twenty-one thousand, nine hundred seventy-two".