18225851276 has 12 divisors (see below), whose sum is σ = 31896228672. Its totient is φ = 9112643088.

The previous prime is 18225851221. The next prime is 18225851279. The reversal of 18225851276 is 67215852281.

It is a self number, because there is not a number n which added to its sum of digits gives 18225851276.

It is not an unprimeable number, because it can be changed into a prime (18225851279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153566 + ... + 245018.

It is an arithmetic number, because the mean of its divisors is an integer number (2658019056).

Almost surely, 2^18225851276 is an apocalyptic number.

It is an amenable number.

18225851276 is a deficient number, since it is larger than the sum of its proper divisors (13670377396).

18225851276 is a wasteful number, since it uses less digits than its factorization.

18225851276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141280 (or 141278 counting only the distinct ones).

The product of its digits is 537600, while the sum is 47.

The spelling of 18225851276 in words is "eighteen billion, two hundred twenty-five million, eight hundred fifty-one thousand, two hundred seventy-six".