117638872192 has 32 divisors (see below), whose sum is σ = 237325276800. Its totient is φ = 58074881280.

The previous prime is 117638872121. The next prime is 117638872201. The reversal of 117638872192 is 291278836711.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5806684 + ... + 5826907.

It is an arithmetic number, because the mean of its divisors is an integer number (7416414900).

Almost surely, 2^117638872192 is an apocalyptic number.

It is an amenable number.

117638872192 is an abundant number, since it is smaller than the sum of its proper divisors (119686404608).

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

117638872192 is an equidigital number, since it uses as much as digits as its factorization.

117638872192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11633684 (or 11633672 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The spelling of 117638872192 in words is "one hundred seventeen billion, six hundred thirty-eight million, eight hundred seventy-two thousand, one hundred ninety-two".