680984356992 has 64 divisors (see below), whose sum is σ = 1809252507360. Its totient is φ = 226946119680.

The previous prime is 680984356939. The next prime is 680984357023. The reversal of 680984356992 is 299653489086.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1625892 + ... + 2001372.

Almost surely, 2^680984356992 is an apocalyptic number.

It is an amenable number.

680984356992 is an abundant number, since it is smaller than the sum of its proper divisors (1128268150368).

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

680984356992 is a wasteful number, since it uses less digits than its factorization.

680984356992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380221 (or 380209 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 69.

The spelling of 680984356992 in words is "six hundred eighty billion, nine hundred eighty-four million, three hundred fifty-six thousand, nine hundred ninety-two".