684260647080 has 64 divisors (see below), whose sum is σ = 2053743301440. Its totient is φ = 182384051712.

The previous prime is 684260647043. The next prime is 684260647123. The reversal of 684260647080 is 80746062486.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1077714 + ... + 1590593.

It is an arithmetic number, because the mean of its divisors is an integer number (32089739085).

Almost surely, 2^684260647080 is an apocalyptic number.

684260647080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

684260647080 is an abundant number, since it is smaller than the sum of its proper divisors (1369482654360).

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

684260647080 is a wasteful number, since it uses less digits than its factorization.

684260647080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670458 (or 2670454 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 684260647080 in words is "six hundred eighty-four billion, two hundred sixty million, six hundred forty-seven thousand, eighty".