2539413161917 has 2 divisors, whose sum is σ = 2539413161918. Its totient is φ = 2539413161916.

The previous prime is 2539413161903. The next prime is 2539413161981. The reversal of 2539413161917 is 7191613149352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1873575113796 + 665838048121 = 1368786^2 + 815989^2 .

It is a cyclic number.

It is not a de Polignac number, because 2539413161917 - 2²³ = 2539404773309 is a prime.

It is a super-2 number, since 2×2539413161917² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2539413161017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269706580958 + 1269706580959.

It is an arithmetic number, because the mean of its divisors is an integer number (1269706580959).

Almost surely, 2^{2539413161917} is an apocalyptic number.

It is an amenable number.

2539413161917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2539413161917 is an equidigital number, since it uses as much as digits as its factorization.

2539413161917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 52.

The spelling of 2539413161917 in words is "two trillion, five hundred thirty-nine billion, four hundred thirteen million, one hundred sixty-one thousand, nine hundred seventeen".