18140274888 has 16 divisors (see below), whose sum is σ = 45350687280. Its totient is φ = 6046758288.

The previous prime is 18140274829. The next prime is 18140274899. The reversal of 18140274888 is 88847204181.

It is a self number, because there is not a number n which added to its sum of digits gives 18140274888.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377922370 + ... + 377922417.

It is an arithmetic number, because the mean of its divisors is an integer number (2834417955).

Almost surely, 2^18140274888 is an apocalyptic number.

It is an amenable number.

18140274888 is an abundant number, since it is smaller than the sum of its proper divisors (27210412392).

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

18140274888 is a wasteful number, since it uses less digits than its factorization.

18140274888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755844796 (or 755844792 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 51.

The spelling of 18140274888 in words is "eighteen billion, one hundred forty million, two hundred seventy-four thousand, eight hundred eighty-eight".