117178444111978 has 16 divisors (see below), whose sum is σ = 176471263102464. Its totient is φ = 58354740587520.

The previous prime is 117178444111921. The next prime is 117178444111979. The reversal of 117178444111978 is 879111444871711.

It is not an unprimeable number, because it can be changed into a prime (117178444111979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8095050 + ... + 17317237.

It is an arithmetic number, because the mean of its divisors is an integer number (11029453943904).

Almost surely, 2^{117178444111978} is an apocalyptic number.

117178444111978 is a deficient number, since it is larger than the sum of its proper divisors (59292818990486).

117178444111978 is a wasteful number, since it uses less digits than its factorization.

117178444111978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25421517.

The product of its digits is 12644352, while the sum is 64.

The spelling of 117178444111978 in words is "one hundred seventeen trillion, one hundred seventy-eight billion, four hundred forty-four million, one hundred eleven thousand, nine hundred seventy-eight".