25740896812 has 12 divisors (see below), whose sum is σ = 45370646440. Its totient is φ = 12777854976.

The previous prime is 25740896809. The next prime is 25740896813. The reversal of 25740896812 is 21869804752.

It is a self number, because there is not a number n which added to its sum of digits gives 25740896812.

It is not an unprimeable number, because it can be changed into a prime (25740896813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23147733 + ... + 23148844.

Almost surely, 2^25740896812 is an apocalyptic number.

It is an amenable number.

25740896812 is a deficient number, since it is larger than the sum of its proper divisors (19629749628).

25740896812 is a wasteful number, since it uses less digits than its factorization.

25740896812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46296720 (or 46296718 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 25740896812 in words is "twenty-five billion, seven hundred forty million, eight hundred ninety-six thousand, eight hundred twelve".