5616392681 has 2 divisors, whose sum is σ = 5616392682. Its totient is φ = 5616392680.

The previous prime is 5616392653. The next prime is 5616392687. The reversal of 5616392681 is 1862936165.

It is a happy number.

5616392681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5544142681 + 72250000 = 74459^2 + 8500^2 .

It is a cyclic number.

It is not a de Polignac number, because 5616392681 - 2²² = 5612198377 is a prime.

It is a super-2 number, since 2×5616392681² = 63087733494380735522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5616392687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2808196340 + 2808196341.

It is an arithmetic number, because the mean of its divisors is an integer number (2808196341).

Almost surely, 2^5616392681 is an apocalyptic number.

It is an amenable number.

5616392681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5616392681 is an equidigital number, since it uses as much as digits as its factorization.

5616392681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 47.

The square root of 5616392681 is about 74942.5959051326. The cubic root of 5616392681 is about 1777.5390687085.

The spelling of 5616392681 in words is "five billion, six hundred sixteen million, three hundred ninety-two thousand, six hundred eighty-one".