18370742225 has 12 divisors (see below), whose sum is σ = 24850604400. Its totient is φ = 13360539600.

The previous prime is 18370742191. The next prime is 18370742231. The reversal of 18370742225 is 52224707381.

It is not a de Polignac number, because 18370742225 - 2⁶ = 18370742161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33401075 + ... + 33401624.

It is an arithmetic number, because the mean of its divisors is an integer number (2070883700).

Almost surely, 2^18370742225 is an apocalyptic number.

It is an amenable number.

18370742225 is a deficient number, since it is larger than the sum of its proper divisors (6479862175).

18370742225 is a wasteful number, since it uses less digits than its factorization.

18370742225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66802720 (or 66802715 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 18370742225 in words is "eighteen billion, three hundred seventy million, seven hundred forty-two thousand, two hundred twenty-five".