5633312681 has 2 divisors, whose sum is σ = 5633312682. Its totient is φ = 5633312680.

The previous prime is 5633312623. The next prime is 5633312683. The reversal of 5633312681 is 1862133365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5551591081 + 81721600 = 74509^2 + 9040^2 .

It is a cyclic number.

It is not a de Polignac number, because 5633312681 - 2⁶ = 5633312617 is a prime.

It is a super-2 number, since 2×5633312681² = 63468423523830815522, which contains 22 as substring.

Together with 5633312683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5633312683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2816656340 + 2816656341.

It is an arithmetic number, because the mean of its divisors is an integer number (2816656341).

Almost surely, 2^5633312681 is an apocalyptic number.

It is an amenable number.

5633312681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5633312681 is an equidigital number, since it uses as much as digits as its factorization.

5633312681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 5633312681 is about 75055.3974141767. The cubic root of 5633312681 is about 1779.3222897673.

The spelling of 5633312681 in words is "five billion, six hundred thirty-three million, three hundred twelve thousand, six hundred eighty-one".