25336871867 has 2 divisors, whose sum is σ = 25336871868. Its totient is φ = 25336871866.

The previous prime is 25336871851. The next prime is 25336871899. The reversal of 25336871867 is 76817863352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25336871867 - 2⁴ = 25336871851 is a prime.

It is not a weakly prime, because it can be changed into another prime (25336871827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12668435933 + 12668435934.

It is an arithmetic number, because the mean of its divisors is an integer number (12668435934).

Almost surely, 2^25336871867 is an apocalyptic number.

25336871867 is a deficient number, since it is larger than the sum of its proper divisors (1).

25336871867 is an equidigital number, since it uses as much as digits as its factorization.

25336871867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 56.

The spelling of 25336871867 in words is "twenty-five billion, three hundred thirty-six million, eight hundred seventy-one thousand, eight hundred sixty-seven".