687371324460 has 96 divisors (see below), whose sum is σ = 1969654579200. Its totient is φ = 179059265280.

The previous prime is 687371324449. The next prime is 687371324513. The reversal of 687371324460 is 64423173786.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275820 + ... + 1204499.

It is an arithmetic number, because the mean of its divisors is an integer number (20517235200).

Almost surely, 2^687371324460 is an apocalyptic number.

687371324460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

687371324460 is an abundant number, since it is smaller than the sum of its proper divisors (1282283254740).

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

687371324460 is a wasteful number, since it uses less digits than its factorization.

687371324460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480511 (or 1480509 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 687371324460 in words is "six hundred eighty-seven billion, three hundred seventy-one million, three hundred twenty-four thousand, four hundred sixty".