680987143565 has 32 divisors (see below), whose sum is σ = 838592040960. Its totient is φ = 530715052800.

The previous prime is 680987143553. The next prime is 680987143579. The reversal of 680987143565 is 565341789086.

It is not a de Polignac number, because 680987143565 - 2¹⁴ = 680987127181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680987143498 and 680987143507.

It is a congruent number.

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, 13314872 + ... + 13365918.

It is an arithmetic number, because the mean of its divisors is an integer number (26206001280).

Almost surely, 2^680987143565 is an apocalyptic number.

It is an amenable number.

680987143565 is a deficient number, since it is larger than the sum of its proper divisors (157604897395).

680987143565 is a wasteful number, since it uses less digits than its factorization.

680987143565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51533.

The product of its (nonzero) digits is 43545600, while the sum is 62.

The spelling of 680987143565 in words is "six hundred eighty billion, nine hundred eighty-seven million, one hundred forty-three thousand, five hundred sixty-five".