5636373581 has 16 divisors (see below), whose sum is σ = 5784730368. Its totient is φ = 5490374400.

The previous prime is 5636373571. The next prime is 5636373641. The reversal of 5636373581 is 1853736365.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5636373581 - 2⁶ = 5636373517 is a prime.

It is a super-2 number, since 2×5636373581² = 63537414289189527122, 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 (5636373571) 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 15 ways as a sum of consecutive naturals, for example, 2108876 + ... + 2111546.

It is an arithmetic number, because the mean of its divisors is an integer number (361545648).

Almost surely, 2^5636373581 is an apocalyptic number.

It is an amenable number.

5636373581 is a deficient number, since it is larger than the sum of its proper divisors (148356787).

5636373581 is a wasteful number, since it uses less digits than its factorization.

5636373581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092.

The product of its digits is 1360800, while the sum is 47.

The square root of 5636373581 is about 75075.7855836354. The cubic root of 5636373581 is about 1779.6445005025.

The spelling of 5636373581 in words is "five billion, six hundred thirty-six million, three hundred seventy-three thousand, five hundred eighty-one".