879955559978 has 16 divisors (see below), whose sum is σ = 1439955917280. Its totient is φ = 399971845200.

The previous prime is 879955559957. The next prime is 879955560031.

879955559978 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 879955559978.

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 in 7 ways as a sum of consecutive naturals, for example, 815888 + ... + 1557428.

It is an arithmetic number, because the mean of its divisors is an integer number (89997244830).

Almost surely, 2^879955559978 is an apocalyptic number.

879955559978 is a deficient number, since it is larger than the sum of its proper divisors (560000357302).

879955559978 is a wasteful number, since it uses less digits than its factorization.

879955559978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795493.

The product of its digits is 12859560000, while the sum is 86.

The spelling of 879955559978 in words is "eight hundred seventy-nine billion, nine hundred fifty-five million, five hundred fifty-nine thousand, nine hundred seventy-eight".