25723416809 has 16 divisors (see below), whose sum is σ = 26906880000. Its totient is φ = 24562474560.

The previous prime is 25723416793. The next prime is 25723416847. The reversal of 25723416809 is 90861432752.

It is a cyclic number.

It is not a de Polignac number, because 25723416809 - 2⁴ = 25723416793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25723416869) 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, 5652467 + ... + 5657015.

It is an arithmetic number, because the mean of its divisors is an integer number (1681680000).

It is a 1-persistent number, because it is pandigital, but 2⋅25723416809 = 51446833618 is not.

Almost surely, 2^25723416809 is an apocalyptic number.

It is an amenable number.

25723416809 is a deficient number, since it is larger than the sum of its proper divisors (1183463191).

25723416809 is a wasteful number, since it uses less digits than its factorization.

25723416809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6968.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 25723416809 in words is "twenty-five billion, seven hundred twenty-three million, four hundred sixteen thousand, eight hundred nine".