25699838976 has 704 divisors, whose sum is σ = 95111808000. Its totient is φ = 6688604160.

The previous prime is 25699838929. The next prime is 25699839007. The reversal of 25699838976 is 67983899652.

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

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 106638216 + ... + 106638456.

It is an arithmetic number, because the mean of its divisors is an integer number (135102000).

Almost surely, 2^25699838976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25699838976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47555904000).

25699838976 is an abundant number, since it is smaller than the sum of its proper divisors (69411969024).

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

25699838976 is a wasteful number, since it uses less digits than its factorization.

25699838976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 301 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 72.

The spelling of 25699838976 in words is "twenty-five billion, six hundred ninety-nine million, eight hundred thirty-eight thousand, nine hundred seventy-six".