25759641623 has 2 divisors, whose sum is σ = 25759641624. Its totient is φ = 25759641622.

The previous prime is 25759641601. The next prime is 25759641631. The reversal of 25759641623 is 32614695752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25759641623 - 2¹⁸ = 25759379479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25759641643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12879820811 + 12879820812.

It is an arithmetic number, because the mean of its divisors is an integer number (12879820812).

Almost surely, 2^25759641623 is an apocalyptic number.

25759641623 is a deficient number, since it is larger than the sum of its proper divisors (1).

25759641623 is an equidigital number, since it uses as much as digits as its factorization.

25759641623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 50.

The spelling of 25759641623 in words is "twenty-five billion, seven hundred fifty-nine million, six hundred forty-one thousand, six hundred twenty-three".