6678947909184 has 56 divisors (see below), whose sum is σ = 17671627100160. Its totient is φ = 2226285218304.

The previous prime is 6678947909147. The next prime is 6678947909219. The reversal of 6678947909184 is 4819097498766.

It is a super-2 number, since 2×6678947909184² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16856257 + ... + 17247935.

Almost surely, 2^{6678947909184} is an apocalyptic number.

6678947909184 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6678947909184 is an abundant number, since it is smaller than the sum of its proper divisors (10992679190976).

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

6678947909184 is a wasteful number, since it uses less digits than its factorization.

6678947909184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480507 (or 480497 counting only the distinct ones).

The product of its (nonzero) digits is 1316818944, while the sum is 78.

The spelling of 6678947909184 in words is "six trillion, six hundred seventy-eight billion, nine hundred forty-seven million, nine hundred nine thousand, one hundred eighty-four".