5636641231 has 16 divisors (see below), whose sum is σ = 6359068800. Its totient is φ = 4960021248.

The previous prime is 5636641201. The next prime is 5636641237. The reversal of 5636641231 is 1321466365.

It is not a de Polignac number, because 5636641231 - 2²⁵ = 5603086799 is a prime.

It is a super-2 number, since 2×5636641231² = 63543448734018390722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5636641237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64846 + ... + 124411.

It is an arithmetic number, because the mean of its divisors is an integer number (397441800).

Almost surely, 2^5636641231 is an apocalyptic number.

5636641231 is a deficient number, since it is larger than the sum of its proper divisors (722427569).

5636641231 is a wasteful number, since it uses less digits than its factorization.

5636641231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189378.

The product of its digits is 77760, while the sum is 37.

The square root of 5636641231 is about 75077.5680946047. The cubic root of 5636641231 is about 1779.6726695787.

The spelling of 5636641231 in words is "five billion, six hundred thirty-six million, six hundred forty-one thousand, two hundred thirty-one".