680598012365 has 8 divisors (see below), whose sum is σ = 830106428568. Its totient is φ = 535552534080.

The previous prime is 680598012317. The next prime is 680598012373. The reversal of 680598012365 is 563210895086.

It can be written as a sum of positive squares in 4 ways, for example, as 41074723561 + 639523288804 = 202669^2 + 799702^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680598012365 - 2¹⁸ = 680597750221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115734142 + ... + 1115734751.

It is an arithmetic number, because the mean of its divisors is an integer number (103763303571).

Almost surely, 2^680598012365 is an apocalyptic number.

It is an amenable number.

680598012365 is a deficient number, since it is larger than the sum of its proper divisors (149508416203).

680598012365 is a wasteful number, since it uses less digits than its factorization.

680598012365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231468959.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 680598012365 in words is "six hundred eighty billion, five hundred ninety-eight million, twelve thousand, three hundred sixty-five".