2517558817079 has 2 divisors, whose sum is σ = 2517558817080. Its totient is φ = 2517558817078.

The previous prime is 2517558817009. The next prime is 2517558817133. The reversal of 2517558817079 is 9707188557152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2517558817079 - 2²⁴ = 2517542039863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2517558817009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258779408539 + 1258779408540.

It is an arithmetic number, because the mean of its divisors is an integer number (1258779408540).

Almost surely, 2^{2517558817079} is an apocalyptic number.

2517558817079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2517558817079 is an equidigital number, since it uses as much as digits as its factorization.

2517558817079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392000, while the sum is 65.

The spelling of 2517558817079 in words is "two trillion, five hundred seventeen billion, five hundred fifty-eight million, eight hundred seventeen thousand, seventy-nine".