5631612361 has 8 divisors (see below), whose sum is σ = 5745111624. Its totient is φ = 5518381440.

The previous prime is 5631612313. The next prime is 5631612367. The reversal of 5631612361 is 1632161365.

It can be written as a sum of positive squares in 4 ways, for example, as 2473172361 + 3158440000 = 49731^2 + 56200^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5631612361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5631612367) 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, 24420 + ... + 108901.

It is an arithmetic number, because the mean of its divisors is an integer number (718138953).

Almost surely, 2^5631612361 is an apocalyptic number.

It is an amenable number.

5631612361 is a deficient number, since it is larger than the sum of its proper divisors (113499263).

5631612361 is a wasteful number, since it uses less digits than its factorization.

5631612361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134171.

The product of its digits is 19440, while the sum is 34.

The square root of 5631612361 is about 75044.0694592184. The cubic root of 5631612361 is about 1779.1432523230.

The spelling of 5631612361 in words is "five billion, six hundred thirty-one million, six hundred twelve thousand, three hundred sixty-one".