25468696809 has 16 divisors (see below), whose sum is σ = 38751171840. Its totient is φ = 16520235120.

The previous prime is 25468696763. The next prime is 25468696817. The reversal of 25468696809 is 90869686452.

25468696809 is a `hidden beast` number, since 2 + 5 + 468 + 6 + 96 + 80 + 9 = 666.

It is not a de Polignac number, because 25468696809 - 2⁷ = 25468696681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25468696819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12746097 + ... + 12748094.

It is an arithmetic number, because the mean of its divisors is an integer number (2421948240).

Almost surely, 2^25468696809 is an apocalyptic number.

It is an amenable number.

25468696809 is a deficient number, since it is larger than the sum of its proper divisors (13282475031).

25468696809 is a wasteful number, since it uses less digits than its factorization.

25468696809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25494237 (or 25494231 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 63.

The spelling of 25468696809 in words is "twenty-five billion, four hundred sixty-eight million, six hundred ninety-six thousand, eight hundred nine".