64674531179 has 16 divisors (see below), whose sum is σ = 69201100800. Its totient is φ = 60230749824.

The previous prime is 64674531161. The next prime is 64674531191. The reversal of 64674531179 is 97113547646.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64674531179 - 2²⁰ = 64673482603 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 64674531179.

It is not an unprimeable number, because it can be changed into a prime (64674533179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778742 + ... + 857780.

It is an arithmetic number, because the mean of its divisors is an integer number (4325068800).

Almost surely, 2^64674531179 is an apocalyptic number.

64674531179 is a deficient number, since it is larger than the sum of its proper divisors (4526569621).

64674531179 is a wasteful number, since it uses less digits than its factorization.

64674531179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79562.

The product of its digits is 3810240, while the sum is 53.

The spelling of 64674531179 in words is "sixty-four billion, six hundred seventy-four million, five hundred thirty-one thousand, one hundred seventy-nine".