25989745896 has 48 divisors (see below), whose sum is σ = 73449286560. Its totient is φ = 8286585120.

The previous prime is 25989745891. The next prime is 25989745909. The reversal of 25989745896 is 69854798952.

25989745896 is a `hidden beast` number, since 2 + 5 + 9 + 89 + 7 + 458 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (25989745891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7845490 + ... + 7848801.

It is an arithmetic number, because the mean of its divisors is an integer number (1530193470).

Almost surely, 2^25989745896 is an apocalyptic number.

It is an amenable number.

25989745896 is an abundant number, since it is smaller than the sum of its proper divisors (47459540664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25989745896 is a wasteful number, since it uses less digits than its factorization.

25989745896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15694326 (or 15694319 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 72.

The spelling of 25989745896 in words is "twenty-five billion, nine hundred eighty-nine million, seven hundred forty-five thousand, eight hundred ninety-six".