25760465409 has 16 divisors (see below), whose sum is σ = 39263573888. Its totient is φ = 14716691712.

The previous prime is 25760465387. The next prime is 25760465441. The reversal of 25760465409 is 90456406752.

It is not a de Polignac number, because 25760465409 - 2⁵ = 25760465377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25760465309) 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 in 15 ways as a sum of consecutive naturals, for example, 59122 + ... + 234555.

It is an arithmetic number, because the mean of its divisors is an integer number (2453973368).

Almost surely, 2^25760465409 is an apocalyptic number.

It is an amenable number.

25760465409 is a deficient number, since it is larger than the sum of its proper divisors (13503108479).

25760465409 is a wasteful number, since it uses less digits than its factorization.

25760465409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297864.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 25760465409 in words is "twenty-five billion, seven hundred sixty million, four hundred sixty-five thousand, four hundred nine".