636575680051 has 8 divisors (see below), whose sum is σ = 668355322320. Its totient is φ = 605451288288.

The previous prime is 636575680049. The next prime is 636575680057. The reversal of 636575680051 is 150086575636.

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 636575680051 - 2¹ = 636575680049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (636575680057) 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 7 ways as a sum of consecutive naturals, for example, 163810636 + ... + 163814521.

It is an arithmetic number, because the mean of its divisors is an integer number (83544415290).

Almost surely, 2^636575680051 is an apocalyptic number.

636575680051 is a deficient number, since it is larger than the sum of its proper divisors (31779642269).

636575680051 is a wasteful number, since it uses less digits than its factorization.

636575680051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327625253.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 636575680051 in words is "six hundred thirty-six billion, five hundred seventy-five million, six hundred eighty thousand, fifty-one".