25999585679 has 2 divisors, whose sum is σ = 25999585680. Its totient is φ = 25999585678.

The previous prime is 25999585663. The next prime is 25999585691. The reversal of 25999585679 is 97658599952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25999585679 - 2⁴ = 25999585663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25999585649) 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, 12999792839 + 12999792840.

It is an arithmetic number, because the mean of its divisors is an integer number (12999792840).

Almost surely, 2^25999585679 is an apocalyptic number.

25999585679 is a deficient number, since it is larger than the sum of its proper divisors (1).

25999585679 is an equidigital number, since it uses as much as digits as its factorization.

25999585679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 551124000, while the sum is 74.

The spelling of 25999585679 in words is "twenty-five billion, nine hundred ninety-nine million, five hundred eighty-five thousand, six hundred seventy-nine".