18385353350 has 48 divisors (see below), whose sum is σ = 42088327008. Its totient is φ = 5818659840.

The previous prime is 18385353299. The next prime is 18385353361. The reversal of 18385353350 is 5335358381.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 2015819 + ... + 2024918.

It is an arithmetic number, because the mean of its divisors is an integer number (876840146).

Almost surely, 2^18385353350 is an apocalyptic number.

18385353350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18385353350 is an abundant number, since it is smaller than the sum of its proper divisors (23702973658).

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

18385353350 is a wasteful number, since it uses less digits than its factorization.

18385353350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040769 (or 4040764 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 18385353350 in words is "eighteen billion, three hundred eighty-five million, three hundred fifty-three thousand, three hundred fifty".