117478931522 has 4 divisors (see below), whose sum is σ = 176218397286. Its totient is φ = 58739465760.

The previous prime is 117478931501. The next prime is 117478931599. The reversal of 117478931522 is 225139874711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225139874711 = 1823 ⋅123499657.

It can be written as a sum of positive squares in only one way, i.e., 113420094841 + 4058836681 = 336779^2 + 63709^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29369732879 + ... + 29369732882.

Almost surely, 2^117478931522 is an apocalyptic number.

117478931522 is a deficient number, since it is larger than the sum of its proper divisors (58739465764).

117478931522 is an equidigital number, since it uses as much as digits as its factorization.

117478931522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58739465763.

The product of its digits is 846720, while the sum is 50.

The spelling of 117478931522 in words is "one hundred seventeen billion, four hundred seventy-eight million, nine hundred thirty-one thousand, five hundred twenty-two".