635979913007 has 2 divisors, whose sum is σ = 635979913008. Its totient is φ = 635979913006.

The previous prime is 635979913001. The next prime is 635979913033. The reversal of 635979913007 is 700319979536.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 635979913007 - 2¹² = 635979908911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635979913001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317989956503 + 317989956504.

It is an arithmetic number, because the mean of its divisors is an integer number (317989956504).

Almost surely, 2^635979913007 is an apocalyptic number.

635979913007 is a deficient number, since it is larger than the sum of its proper divisors (1).

635979913007 is an equidigital number, since it uses as much as digits as its factorization.

635979913007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9644670, while the sum is 59.

The spelling of 635979913007 in words is "six hundred thirty-five billion, nine hundred seventy-nine million, nine hundred thirteen thousand, seven".