5615684849 has 2 divisors, whose sum is σ = 5615684850. Its totient is φ = 5615684848.

The previous prime is 5615684779. The next prime is 5615684861. The reversal of 5615684849 is 9484865165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3169690000 + 2445994849 = 56300^2 + 49457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5615684849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5615684794 and 5615684803.

It is not a weakly prime, because it can be changed into another prime (5615684449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2807842424 + 2807842425.

It is an arithmetic number, because the mean of its divisors is an integer number (2807842425).

Almost surely, 2^5615684849 is an apocalyptic number.

It is an amenable number.

5615684849 is a deficient number, since it is larger than the sum of its proper divisors (1).

5615684849 is an equidigital number, since it uses as much as digits as its factorization.

5615684849 is an odious number, because the sum of its binary digits is odd.

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

The square root of 5615684849 is about 74937.8732617893. The cubic root of 5615684849 is about 1777.4643913627.

The spelling of 5615684849 in words is "five billion, six hundred fifteen million, six hundred eighty-four thousand, eight hundred forty-nine".