49615974013 has 2 divisors, whose sum is σ = 49615974014. Its totient is φ = 49615974012.

The previous prime is 49615973989. The next prime is 49615974017. The reversal of 49615974013 is 31047951694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47020886649 + 2595087364 = 216843^2 + 50942^2 .

It is a cyclic number.

It is not a de Polignac number, because 49615974013 - 2⁹ = 49615973501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49615974017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24807987006 + 24807987007.

It is an arithmetic number, because the mean of its divisors is an integer number (24807987007).

Almost surely, 2^49615974013 is an apocalyptic number.

It is an amenable number.

49615974013 is a deficient number, since it is larger than the sum of its proper divisors (1).

49615974013 is an equidigital number, since it uses as much as digits as its factorization.

49615974013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 49615974013 in words is "forty-nine billion, six hundred fifteen million, nine hundred seventy-four thousand, thirteen".