879647746978 has 128 divisors (see below), whose sum is σ = 1793078171136. Its totient is φ = 312532992000.

The previous prime is 879647746969. The next prime is 879647746981.

879647746978 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 116706826 + ... + 116714362.

It is an arithmetic number, because the mean of its divisors is an integer number (14008423212).

Almost surely, 2^879647746978 is an apocalyptic number.

879647746978 is an abundant number, since it is smaller than the sum of its proper divisors (913430424158).

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

879647746978 is a wasteful number, since it uses less digits than its factorization.

879647746978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8268.

The product of its digits is 7169347584, while the sum is 82.

It can be divided in two parts, 8796 and 47746978, that added together give a palindrome (47755774).

The spelling of 879647746978 in words is "eight hundred seventy-nine billion, six hundred forty-seven million, seven hundred forty-six thousand, nine hundred seventy-eight".