636085086747 has 64 divisors (see below), whose sum is σ = 964025587200. Its totient is φ = 369646156800.

The previous prime is 636085086733. The next prime is 636085086773. The reversal of 636085086747 is 747680580636.

It is a de Polignac number, because none of the positive numbers 2^k-636085086747 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (636085786747) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 155178504 + ... + 155182602.

It is an arithmetic number, because the mean of its divisors is an integer number (15062899800).

Almost surely, 2^636085086747 is an apocalyptic number.

636085086747 is a deficient number, since it is larger than the sum of its proper divisors (327940500453).

636085086747 is a wasteful number, since it uses less digits than its factorization.

636085086747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964.

The product of its (nonzero) digits is 40642560, while the sum is 60.

The spelling of 636085086747 in words is "six hundred thirty-six billion, eighty-five million, eighty-six thousand, seven hundred forty-seven".