8879786856 has 48 divisors (see below), whose sum is σ = 24157311360. Its totient is φ = 2946650400.

The previous prime is 8879786833. The next prime is 8879786873. The reversal of 8879786856 is 6586879788.

It is a super-2 number, since 2×8879786856² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260470 + ... + 292581.

It is an arithmetic number, because the mean of its divisors is an integer number (503277320).

Almost surely, 2^8879786856 is an apocalyptic number.

It is an amenable number.

8879786856 is an abundant number, since it is smaller than the sum of its proper divisors (15277524504).

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

8879786856 is a wasteful number, since it uses less digits than its factorization.

8879786856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553286 (or 553279 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 72.

The square root of 8879786856 is about 94232.6209759656. The cubic root of 8879786856 is about 2070.7810425178.

The spelling of 8879786856 in words is "eight billion, eight hundred seventy-nine million, seven hundred eighty-six thousand, eight hundred fifty-six".