680486691599 has 48 divisors (see below), whose sum is σ = 832107880800. Its totient is φ = 550986508800.

The previous prime is 680486691517. The next prime is 680486691611. The reversal of 680486691599 is 995196684086.

680486691599 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680486691599 - 2²⁰ = 680485643023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680486691799) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109382309 + ... + 109388529.

It is an arithmetic number, because the mean of its divisors is an integer number (17335580850).

Almost surely, 2^680486691599 is an apocalyptic number.

680486691599 is a deficient number, since it is larger than the sum of its proper divisors (151621189201).

680486691599 is a wasteful number, since it uses less digits than its factorization.

680486691599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8316 (or 8303 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 71.

The spelling of 680486691599 in words is "six hundred eighty billion, four hundred eighty-six million, six hundred ninety-one thousand, five hundred ninety-nine".