25628612719 has 2 divisors, whose sum is σ = 25628612720. Its totient is φ = 25628612718.

The previous prime is 25628612717. The next prime is 25628612731. The reversal of 25628612719 is 91721682652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25628612719 - 2¹ = 25628612717 is a prime.

It is a super-2 number, since 2×25628612719² (a number of 22 digits) contains 22 as substring.

Together with 25628612717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25628612717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12814306359 + 12814306360.

It is an arithmetic number, because the mean of its divisors is an integer number (12814306360).

Almost surely, 2^25628612719 is an apocalyptic number.

25628612719 is a deficient number, since it is larger than the sum of its proper divisors (1).

25628612719 is an equidigital number, since it uses as much as digits as its factorization.

25628612719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The spelling of 25628612719 in words is "twenty-five billion, six hundred twenty-eight million, six hundred twelve thousand, seven hundred nineteen".