636763828023 has 6 divisors (see below), whose sum is σ = 919769973824. Its totient is φ = 424509218676.

The previous prime is 636763828009. The next prime is 636763828081. The reversal of 636763828023 is 320828367636.

It is a happy number.

It is not a de Polignac number, because 636763828023 - 2²⁶ = 636696719159 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 (636763820023) 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 5 ways as a sum of consecutive naturals, for example, 35375768215 + ... + 35375768232.

Almost surely, 2^636763828023 is an apocalyptic number.

636763828023 is a deficient number, since it is larger than the sum of its proper divisors (283006145801).

636763828023 is a wasteful number, since it uses less digits than its factorization.

636763828023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70751536453 (or 70751536450 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 636763828023 in words is "six hundred thirty-six billion, seven hundred sixty-three million, eight hundred twenty-eight thousand, twenty-three".