25948079639 has 2 divisors, whose sum is σ = 25948079640. Its totient is φ = 25948079638.

The previous prime is 25948079623. The next prime is 25948079683. The reversal of 25948079639 is 93697084952.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25948079639 - 2⁴ = 25948079623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25948070639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12974039819 + 12974039820.

It is an arithmetic number, because the mean of its divisors is an integer number (12974039820).

Almost surely, 2^25948079639 is an apocalyptic number.

25948079639 is a deficient number, since it is larger than the sum of its proper divisors (1).

25948079639 is an equidigital number, since it uses as much as digits as its factorization.

25948079639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 25948079639 in words is "twenty-five billion, nine hundred forty-eight million, seventy-nine thousand, six hundred thirty-nine".