800136633631 has 2 divisors, whose sum is σ = 800136633632. Its totient is φ = 800136633630.

The previous prime is 800136633613. The next prime is 800136633677. The reversal of 800136633631 is 136336631008.

Together with previous prime (800136633613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 800136633631 - 2¹¹ = 800136631583 is a prime.

It is a super-2 number, since 2×800136633631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800136633031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400068316815 + 400068316816.

It is an arithmetic number, because the mean of its divisors is an integer number (400068316816).

Almost surely, 2^800136633631 is an apocalyptic number.

800136633631 is a deficient number, since it is larger than the sum of its proper divisors (1).

800136633631 is an equidigital number, since it uses as much as digits as its factorization.

800136633631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 800136633631 in words is "eight hundred billion, one hundred thirty-six million, six hundred thirty-three thousand, six hundred thirty-one".