25991828112 has 80 divisors (see below), whose sum is σ = 67702845312. Its totient is φ = 8592230400.

The previous prime is 25991828087. The next prime is 25991828131. The reversal of 25991828112 is 21182819952.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4904248 + ... + 4909544.

Almost surely, 2^25991828112 is an apocalyptic number.

It is an amenable number.

25991828112 is an abundant number, since it is smaller than the sum of its proper divisors (41711017200).

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

25991828112 is a wasteful number, since it uses less digits than its factorization.

25991828112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6136 (or 6130 counting only the distinct ones).

The product of its digits is 207360, while the sum is 48.

The spelling of 25991828112 in words is "twenty-five billion, nine hundred ninety-one million, eight hundred twenty-eight thousand, one hundred twelve".