684081936016 has 20 divisors (see below), whose sum is σ = 1325421743472. Its totient is φ = 342037615136.

The previous prime is 684081935939. The next prime is 684081936089. The reversal of 684081936016 is 610639180486.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2686575 + ... + 2930161.

Almost surely, 2^684081936016 is an apocalyptic number.

It is an amenable number.

684081936016 is a deficient number, since it is larger than the sum of its proper divisors (641339807456).

684081936016 is a wasteful number, since it uses less digits than its factorization.

684081936016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419118 (or 419112 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 684081936016 in words is "six hundred eighty-four billion, eighty-one million, nine hundred thirty-six thousand, sixteen".