25804111389 has 16 divisors (see below), whose sum is σ = 39520153728. Its totient is φ = 14670355392.

The previous prime is 25804111357. The next prime is 25804111441. The reversal of 25804111389 is 98311140852.

It is not a de Polignac number, because 25804111389 - 2⁵ = 25804111357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25804111389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25804111339) 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, 3114562 + ... + 3122835.

It is an arithmetic number, because the mean of its divisors is an integer number (2470009608).

Almost surely, 2^25804111389 is an apocalyptic number.

It is an amenable number.

25804111389 is a deficient number, since it is larger than the sum of its proper divisors (13716042339).

25804111389 is a wasteful number, since it uses less digits than its factorization.

25804111389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6237604.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 25804111389 in words is "twenty-five billion, eight hundred four million, one hundred eleven thousand, three hundred eighty-nine".