6847865880 has 64 divisors (see below), whose sum is σ = 21752051040. Its totient is φ = 1718679552.

The previous prime is 6847865839. The next prime is 6847865881. The reversal of 6847865880 is 885687486.

It is a super-2 number, since 2×6847865880² = 93786534220936348800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6847865881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1676359 + ... + 1680438.

Almost surely, 2^6847865880 is an apocalyptic number.

6847865880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6847865880 is an abundant number, since it is smaller than the sum of its proper divisors (14904185160).

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

6847865880 is a wasteful number, since it uses less digits than its factorization.

6847865880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356828 (or 3356824 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 60.

The square root of 6847865880 is about 82751.8330914790. The cubic root of 6847865880 is about 1898.9713619520.

The spelling of 6847865880 in words is "six billion, eight hundred forty-seven million, eight hundred sixty-five thousand, eight hundred eighty".