5615684489 has 2 divisors, whose sum is σ = 5615684490. Its totient is φ = 5615684488.

The previous prime is 5615684449. The next prime is 5615684491. The reversal of 5615684489 is 9844865165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3746419264 + 1869265225 = 61208^2 + 43235^2 .

It is a cyclic number.

It is not a de Polignac number, because 5615684489 - 2⁸ = 5615684233 is a prime.

It is a super-2 number, since 2×5615684489² = 63071824559990382242, which contains 22 as substring.

Together with 5615684491, 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 (5615684449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2807842244 + 2807842245.

It is an arithmetic number, because the mean of its divisors is an integer number (2807842245).

Almost surely, 2^5615684489 is an apocalyptic number.

It is an amenable number.

5615684489 is a deficient number, since it is larger than the sum of its proper divisors (1).

5615684489 is an equidigital number, since it uses as much as digits as its factorization.

5615684489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8294400, while the sum is 56.

The square root of 5615684489 is about 74937.8708597996. The cubic root of 5615684489 is about 1777.4643533805.

The spelling of 5615684489 in words is "five billion, six hundred fifteen million, six hundred eighty-four thousand, four hundred eighty-nine".