25996822471687 has 2 divisors, whose sum is σ = 25996822471688. Its totient is φ = 25996822471686.

The previous prime is 25996822471649. The next prime is 25996822471691. The reversal of 25996822471687 is 78617422869952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25996822471687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25996822471637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12998411235843 + 12998411235844.

It is an arithmetic number, because the mean of its divisors is an integer number (12998411235844).

Almost surely, 2^{25996822471687} is an apocalyptic number.

25996822471687 is a deficient number, since it is larger than the sum of its proper divisors (1).

25996822471687 is an equidigital number, since it uses as much as digits as its factorization.

25996822471687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1463132160, while the sum is 76.

The spelling of 25996822471687 in words is "twenty-five trillion, nine hundred ninety-six billion, eight hundred twenty-two million, four hundred seventy-one thousand, six hundred eighty-seven".