25868766899 has 2 divisors, whose sum is σ = 25868766900. Its totient is φ = 25868766898.

The previous prime is 25868766877. The next prime is 25868766947. The reversal of 25868766899 is 99866786852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25868766899 - 2⁸ = 25868766643 is a prime.

It is not a weakly prime, because it can be changed into another prime (25868766829) 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, 12934383449 + 12934383450.

It is an arithmetic number, because the mean of its divisors is an integer number (12934383450).

Almost surely, 2^25868766899 is an apocalyptic number.

25868766899 is a deficient number, since it is larger than the sum of its proper divisors (1).

25868766899 is an equidigital number, since it uses as much as digits as its factorization.

25868766899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 627056640, while the sum is 74.

The spelling of 25868766899 in words is "twenty-five billion, eight hundred sixty-eight million, seven hundred sixty-six thousand, eight hundred ninety-nine".