25938315719 has 2 divisors, whose sum is σ = 25938315720. Its totient is φ = 25938315718.

The previous prime is 25938315659. The next prime is 25938315787. The reversal of 25938315719 is 91751383952.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25938315719 is a prime.

It is a super-2 number, since 2×25938315719² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25938315419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12969157859 + 12969157860.

It is an arithmetic number, because the mean of its divisors is an integer number (12969157860).

Almost surely, 2^25938315719 is an apocalyptic number.

25938315719 is a deficient number, since it is larger than the sum of its proper divisors (1).

25938315719 is an equidigital number, since it uses as much as digits as its factorization.

25938315719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 53.

The spelling of 25938315719 in words is "twenty-five billion, nine hundred thirty-eight million, three hundred fifteen thousand, seven hundred nineteen".