680987143672 has 16 divisors (see below), whose sum is σ = 1392928248600. Its totient is φ = 309539610720.

The previous prime is 680987143633. The next prime is 680987143747. The reversal of 680987143672 is 276341789086.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 680987143672.

It is a congruent number.

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, 3869245047 + ... + 3869245222.

Almost surely, 2^680987143672 is an apocalyptic number.

It is an amenable number.

680987143672 is an abundant number, since it is smaller than the sum of its proper divisors (711941104928).

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

680987143672 is a wasteful number, since it uses less digits than its factorization.

680987143672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7738490286 (or 7738490282 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 680987143672 in words is "six hundred eighty billion, nine hundred eighty-seven million, one hundred forty-three thousand, six hundred seventy-two".