49998717504013 has 2 divisors, whose sum is σ = 49998717504014. Its totient is φ = 49998717504012.

The previous prime is 49998717503983. The next prime is 49998717504083. The reversal of 49998717504013 is 31040571789994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49738630763844 + 260086740169 = 7052562^2 + 509987^2 .

It is a cyclic number.

It is not a de Polignac number, because 49998717504013 - 2³⁷ = 49861278550541 is a prime.

It is a super-2 number, since 2×49998717504013² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49998717504013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49998717504083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999358752006 + 24999358752007.

It is an arithmetic number, because the mean of its divisors is an integer number (24999358752007).

Almost surely, 2^{49998717504013} is an apocalyptic number.

It is an amenable number.

49998717504013 is a deficient number, since it is larger than the sum of its proper divisors (1).

49998717504013 is an equidigital number, since it uses as much as digits as its factorization.

49998717504013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68584320, while the sum is 67.

The spelling of 49998717504013 in words is "forty-nine trillion, nine hundred ninety-eight billion, seven hundred seventeen million, five hundred four thousand, thirteen".