636245057710079 has 8 divisors (see below), whose sum is σ = 673997446320240. Its totient is φ = 598919249762496.

The previous prime is 636245057710069. The next prime is 636245057710177. The reversal of 636245057710079 is 970017750542636.

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

It is a cyclic number.

It is not a de Polignac number, because 636245057710079 - 2²⁰ = 636245056661503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636245057710069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106645162574 + ... + 106645168539.

It is an arithmetic number, because the mean of its divisors is an integer number (84249680790030).

Almost surely, 2^{636245057710079} is an apocalyptic number.

636245057710079 is a deficient number, since it is larger than the sum of its proper divisors (37752388610161).

636245057710079 is a wasteful number, since it uses less digits than its factorization.

636245057710079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213290331289.

The product of its (nonzero) digits is 66679200, while the sum is 62.

The spelling of 636245057710079 in words is "six hundred thirty-six trillion, two hundred forty-five billion, fifty-seven million, seven hundred ten thousand, seventy-nine".