25790684427 has 24 divisors (see below), whose sum is σ = 37585735200. Its totient is φ = 17040723840.

The previous prime is 25790684407. The next prime is 25790684429. The reversal of 25790684427 is 72448609752.

25790684427 is a `hidden beast` number, since 2 + 57 + 90 + 6 + 84 + 427 = 666.

It is not a de Polignac number, because 25790684427 - 2⁷ = 25790684299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25790684429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 761449 + ... + 794597.

It is an arithmetic number, because the mean of its divisors is an integer number (1566072300).

Almost surely, 2^25790684427 is an apocalyptic number.

25790684427 is a deficient number, since it is larger than the sum of its proper divisors (11795050773).

25790684427 is a wasteful number, since it uses less digits than its factorization.

25790684427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33923 (or 33920 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 25790684427 in words is "twenty-five billion, seven hundred ninety million, six hundred eighty-four thousand, four hundred twenty-seven".