680636491035 has 16 divisors (see below), whose sum is σ = 1090836460800. Its totient is φ = 362400103520.

The previous prime is 680636491019. The next prime is 680636491039. The reversal of 680636491035 is 530194636086.

It is a happy number.

680636491035 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 680636491035 - 2⁴ = 680636491019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680636491039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37867281 + ... + 37885250.

It is an arithmetic number, because the mean of its divisors is an integer number (68177278800).

Almost surely, 2^680636491035 is an apocalyptic number.

680636491035 is a deficient number, since it is larger than the sum of its proper divisors (410199969765).

680636491035 is a wasteful number, since it uses less digits than its factorization.

680636491035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75753138.

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 680636491035 in words is "six hundred eighty billion, six hundred thirty-six million, four hundred ninety-one thousand, thirty-five".