879520025978 has 16 divisors (see below), whose sum is σ = 1447533753696. Its totient is φ = 397470950640.

The previous prime is 879520025957. The next prime is 879520026001.

It is a happy number.

879520025978 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 879520025978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115540076 + ... + 115547687.

It is an arithmetic number, because the mean of its divisors is an integer number (90470859606).

Almost surely, 2^879520025978 is an apocalyptic number.

879520025978 is a deficient number, since it is larger than the sum of its proper divisors (568013727718).

879520025978 is a wasteful number, since it uses less digits than its factorization.

879520025978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231087949.

The product of its (nonzero) digits is 25401600, while the sum is 62.

The spelling of 879520025978 in words is "eight hundred seventy-nine billion, five hundred twenty million, twenty-five thousand, nine hundred seventy-eight".