25907919767 has 2 divisors, whose sum is σ = 25907919768. Its totient is φ = 25907919766.

The previous prime is 25907919749. The next prime is 25907919773. The reversal of 25907919767 is 76791970952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25907919767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25907919787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12953959883 + 12953959884.

It is an arithmetic number, because the mean of its divisors is an integer number (12953959884).

Almost surely, 2^25907919767 is an apocalyptic number.

25907919767 is a deficient number, since it is larger than the sum of its proper divisors (1).

25907919767 is an equidigital number, since it uses as much as digits as its factorization.

25907919767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15002820, while the sum is 62.

The spelling of 25907919767 in words is "twenty-five billion, nine hundred seven million, nine hundred nineteen thousand, seven hundred sixty-seven".