25867265719 has 2 divisors, whose sum is σ = 25867265720. Its totient is φ = 25867265718.

The previous prime is 25867265713. The next prime is 25867265791. The reversal of 25867265719 is 91756276852.

Together with next prime (25867265791) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25867265719 - 2¹¹ = 25867263671 is a prime.

It is a super-2 number, since 2×25867265719² (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 (25867265713) 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, 12933632859 + 12933632860.

It is an arithmetic number, because the mean of its divisors is an integer number (12933632860).

Almost surely, 2^25867265719 is an apocalyptic number.

25867265719 is a deficient number, since it is larger than the sum of its proper divisors (1).

25867265719 is an equidigital number, since it uses as much as digits as its factorization.

25867265719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12700800, while the sum is 58.

The spelling of 25867265719 in words is "twenty-five billion, eight hundred sixty-seven million, two hundred sixty-five thousand, seven hundred nineteen".