25748406851 has 2 divisors, whose sum is σ = 25748406852. Its totient is φ = 25748406850.

The previous prime is 25748406811. The next prime is 25748406877. The reversal of 25748406851 is 15860484752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25748406851 - 2²⁶ = 25681297987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25748406851.

It is not a weakly prime, because it can be changed into another prime (25748406811) 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, 12874203425 + 12874203426.

It is an arithmetic number, because the mean of its divisors is an integer number (12874203426).

Almost surely, 2^25748406851 is an apocalyptic number.

25748406851 is a deficient number, since it is larger than the sum of its proper divisors (1).

25748406851 is an equidigital number, since it uses as much as digits as its factorization.

25748406851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 25748406851 in words is "twenty-five billion, seven hundred forty-eight million, four hundred six thousand, eight hundred fifty-one".