117860745979 has 16 divisors (see below), whose sum is σ = 122321908800. Its totient is φ = 113468169600.

The previous prime is 117860745941. The next prime is 117860746007. The reversal of 117860745979 is 979547068711.

It is a cyclic number.

It is not a de Polignac number, because 117860745979 - 2⁷ = 117860745851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117860745979.

It is not an unprimeable number, because it can be changed into a prime (117860745479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6467122 + ... + 6485320.

It is an arithmetic number, because the mean of its divisors is an integer number (7645119300).

Almost surely, 2^117860745979 is an apocalyptic number.

117860745979 is a deficient number, since it is larger than the sum of its proper divisors (4461162821).

117860745979 is a wasteful number, since it uses less digits than its factorization.

117860745979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20070.

The product of its (nonzero) digits is 26671680, while the sum is 64.

The spelling of 117860745979 in words is "one hundred seventeen billion, eight hundred sixty million, seven hundred forty-five thousand, nine hundred seventy-nine".