2563258321439 has 2 divisors, whose sum is σ = 2563258321440. Its totient is φ = 2563258321438.

The previous prime is 2563258321427. The next prime is 2563258321441. The reversal of 2563258321439 is 9341238523652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2563258321439 is a prime.

Together with 2563258321441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2563258321469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281629160719 + 1281629160720.

It is an arithmetic number, because the mean of its divisors is an integer number (1281629160720).

Almost surely, 2^{2563258321439} is an apocalyptic number.

2563258321439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563258321439 is an equidigital number, since it uses as much as digits as its factorization.

2563258321439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9331200, while the sum is 53.

The spelling of 2563258321439 in words is "two trillion, five hundred sixty-three billion, two hundred fifty-eight million, three hundred twenty-one thousand, four hundred thirty-nine".