25783998792 has 64 divisors (see below), whose sum is σ = 68227723200. Its totient is φ = 8097304320.

The previous prime is 25783998791. The next prime is 25783998829. The reversal of 25783998792 is 29789938752.

It is not an unprimeable number, because it can be changed into a prime (25783998791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73663 + ... + 238734.

It is an arithmetic number, because the mean of its divisors is an integer number (1066058175).

Almost surely, 2^25783998792 is an apocalyptic number.

It is an amenable number.

25783998792 is an abundant number, since it is smaller than the sum of its proper divisors (42443724408).

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

25783998792 is a wasteful number, since it uses less digits than its factorization.

25783998792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312606 (or 312602 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 69.

The spelling of 25783998792 in words is "twenty-five billion, seven hundred eighty-three million, nine hundred ninety-eight thousand, seven hundred ninety-two".