117498400978 has 16 divisors (see below), whose sum is σ = 206338656384. Its totient is φ = 49128251040.

The previous prime is 117498400883. The next prime is 117498400993. The reversal of 117498400978 is 879004894711.

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, 102349950 + ... + 102351097.

It is an arithmetic number, because the mean of its divisors is an integer number (12896166024).

Almost surely, 2^117498400978 is an apocalyptic number.

117498400978 is a deficient number, since it is larger than the sum of its proper divisors (88840255406).

117498400978 is a wasteful number, since it uses less digits than its factorization.

117498400978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204701097.

The product of its (nonzero) digits is 4064256, while the sum is 58.

The spelling of 117498400978 in words is "one hundred seventeen billion, four hundred ninety-eight million, four hundred thousand, nine hundred seventy-eight".