25610364466991 has 2 divisors, whose sum is σ = 25610364466992. Its totient is φ = 25610364466990.

The previous prime is 25610364466943. The next prime is 25610364467069. The reversal of 25610364466991 is 19966446301652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25610364466991 - 2²² = 25610360272687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25610364466931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12805182233495 + 12805182233496.

It is an arithmetic number, because the mean of its divisors is an integer number (12805182233496).

Almost surely, 2^{25610364466991} is an apocalyptic number.

25610364466991 is a deficient number, since it is larger than the sum of its proper divisors (1).

25610364466991 is an equidigital number, since it uses as much as digits as its factorization.

25610364466991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50388480, while the sum is 62.

The spelling of 25610364466991 in words is "twenty-five trillion, six hundred ten billion, three hundred sixty-four million, four hundred sixty-six thousand, nine hundred ninety-one".