879927729978 has 32 divisors (see below), whose sum is σ = 1921329603072. Its totient is φ = 266438199600.

The previous prime is 879927729959. The next prime is 879927729979.

It is a happy number.

879927729978 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 879927729978.

It is not an unprimeable number, because it can be changed into a prime (879927729979) 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, 5078326 + ... + 5248737.

It is an arithmetic number, because the mean of its divisors is an integer number (60041550096).

Almost surely, 2^879927729978 is an apocalyptic number.

879927729978 is an abundant number, since it is smaller than the sum of its proper divisors (1041401873094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879927729978 is a wasteful number, since it uses less digits than its factorization.

879927729978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10328370.

The product of its digits is 4032758016, while the sum is 84.

The spelling of 879927729978 in words is "eight hundred seventy-nine billion, nine hundred twenty-seven million, seven hundred twenty-nine thousand, nine hundred seventy-eight".