25974827788 has 48 divisors (see below), whose sum is σ = 55960066624. Its totient is φ = 10273132800.

The previous prime is 25974827761. The next prime is 25974827849. The reversal of 25974827788 is 88772847952.

It is a happy number.

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, 2068906 + ... + 2081422.

Almost surely, 2^25974827788 is an apocalyptic number.

25974827788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25974827788 is an abundant number, since it is smaller than the sum of its proper divisors (29985238836).

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

25974827788 is a wasteful number, since it uses less digits than its factorization.

25974827788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18242 (or 18240 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 67.

The spelling of 25974827788 in words is "twenty-five billion, nine hundred seventy-four million, eight hundred twenty-seven thousand, seven hundred eighty-eight".