18342501850 has 12 divisors (see below), whose sum is σ = 34117053534. Its totient is φ = 7337000720.

The previous prime is 18342501833. The next prime is 18342501899. The reversal of 18342501850 is 5810524381.

It can be written as a sum of positive squares in 3 ways, for example, as 13289708961 + 5052792889 = 115281^2 + 71083^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 183424969 + ... + 183425068.

Almost surely, 2^18342501850 is an apocalyptic number.

18342501850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18342501850 is a deficient number, since it is larger than the sum of its proper divisors (15774551684).

18342501850 is a wasteful number, since it uses less digits than its factorization.

18342501850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366850049 (or 366850044 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 18342501850 in words is "eighteen billion, three hundred forty-two million, five hundred one thousand, eight hundred fifty".