879781812012 has 216 divisors, whose sum is σ = 2414153763840. Its totient is φ = 279861816960.

The previous prime is 879781811999. The next prime is 879781812023. The reversal of 879781812012 is 210218187978.

879781812012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 879781812012.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 160570689 + ... + 160576167.

Almost surely, 2^879781812012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879781812012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207076881920).

879781812012 is an abundant number, since it is smaller than the sum of its proper divisors (1534371951828).

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

879781812012 is a wasteful number, since it uses less digits than its factorization.

879781812012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5675 (or 5588 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 54.

The spelling of 879781812012 in words is "eight hundred seventy-nine billion, seven hundred eighty-one million, eight hundred twelve thousand, twelve".