680836901361 has 16 divisors (see below), whose sum is σ = 953284804224. Its totient is φ = 431391527424.

The previous prime is 680836901333. The next prime is 680836901369. The reversal of 680836901361 is 163109638086.

It is not a de Polignac number, because 680836901361 - 2¹³ = 680836893169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680836901369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31413376 + ... + 31435041.

It is an arithmetic number, because the mean of its divisors is an integer number (59580300264).

Almost surely, 2^680836901361 is an apocalyptic number.

It is an amenable number.

680836901361 is a deficient number, since it is larger than the sum of its proper divisors (272447902863).

680836901361 is a wasteful number, since it uses less digits than its factorization.

680836901361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62848600.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 680836901361 in words is "six hundred eighty billion, eight hundred thirty-six million, nine hundred one thousand, three hundred sixty-one".