6856624896 has 72 divisors (see below), whose sum is σ = 19907611584. Its totient is φ = 2077762560.

The previous prime is 6856624891. The next prime is 6856624897. The reversal of 6856624896 is 6984266586.

It is not an unprimeable number, because it can be changed into a prime (6856624891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397366 + ... + 414261.

Almost surely, 2^6856624896 is an apocalyptic number.

6856624896 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6856624896 is an abundant number, since it is smaller than the sum of its proper divisors (13050986688).

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

6856624896 is a wasteful number, since it uses less digits than its factorization.

6856624896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811657 (or 811643 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 60.

The square root of 6856624896 is about 82804.7395744954. The cubic root of 6856624896 is about 1899.7806668329.

The spelling of 6856624896 in words is "six billion, eight hundred fifty-six million, six hundred twenty-four thousand, eight hundred ninety-six".