6847770864 has 80 divisors (see below), whose sum is σ = 20137353984. Its totient is φ = 1984857600.

The previous prime is 6847770857. The next prime is 6847770871. The reversal of 6847770864 is 4680777486.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6847770857) and next prime (6847770871).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269797 + ... + 294084.

Almost surely, 2^6847770864 is an apocalyptic number.

It is an amenable number.

6847770864 is an abundant number, since it is smaller than the sum of its proper divisors (13289583120).

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

6847770864 is a wasteful number, since it uses less digits than its factorization.

6847770864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563926 (or 563920 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 57.

The square root of 6847770864 is about 82751.2589874015. The cubic root of 6847770864 is about 1898.9625789968.

The spelling of 6847770864 in words is "six billion, eight hundred forty-seven million, seven hundred seventy thousand, eight hundred sixty-four".