25827227866 has 32 divisors (see below), whose sum is σ = 45361824768. Its totient is φ = 10897712640.

The previous prime is 25827227861. The next prime is 25827227887. The reversal of 25827227866 is 66872272852.

It is not an unprimeable number, because it can be changed into a prime (25827227861) 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, 445690 + ... + 500293.

It is an arithmetic number, because the mean of its divisors is an integer number (1417557024).

Almost surely, 2^25827227866 is an apocalyptic number.

25827227866 is a deficient number, since it is larger than the sum of its proper divisors (19534596902).

25827227866 is a wasteful number, since it uses less digits than its factorization.

25827227866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946086.

The product of its digits is 9031680, while the sum is 55.

The spelling of 25827227866 in words is "twenty-five billion, eight hundred twenty-seven million, two hundred twenty-seven thousand, eight hundred sixty-six".