879493822812 has 72 divisors (see below), whose sum is σ = 2447521156080. Its totient is φ = 264068190720.

The previous prime is 879493822799. The next prime is 879493822813. The reversal of 879493822812 is 218228394978.

It is a self number, because there is not a number n which added to its sum of digits gives 879493822812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879493822813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10144653 + ... + 10230980.

It is an arithmetic number, because the mean of its divisors is an integer number (33993349390).

Almost surely, 2^879493822812 is an apocalyptic number.

It is an amenable number.

879493822812 is an abundant number, since it is smaller than the sum of its proper divisors (1568027333268).

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

879493822812 is a wasteful number, since it uses less digits than its factorization.

879493822812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20375763 (or 20375758 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The spelling of 879493822812 in words is "eight hundred seventy-nine billion, four hundred ninety-three million, eight hundred twenty-two thousand, eight hundred twelve".