25797379567 has 2 divisors, whose sum is σ = 25797379568. Its totient is φ = 25797379566.

The previous prime is 25797379549. The next prime is 25797379627. The reversal of 25797379567 is 76597379752.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25797379567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25797379507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12898689783 + 12898689784.

It is an arithmetic number, because the mean of its divisors is an integer number (12898689784).

Almost surely, 2^25797379567 is an apocalyptic number.

25797379567 is a deficient number, since it is larger than the sum of its proper divisors (1).

25797379567 is an equidigital number, since it uses as much as digits as its factorization.

25797379567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 175032900, while the sum is 67.

The spelling of 25797379567 in words is "twenty-five billion, seven hundred ninety-seven million, three hundred seventy-nine thousand, five hundred sixty-seven".