18538683350 has 24 divisors (see below), whose sum is σ = 37616674968. Its totient is φ = 6741339200.

The previous prime is 18538683349. The next prime is 18538683419. The reversal of 18538683350 is 5338683581.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16852799 + ... + 16853898.

It is an arithmetic number, because the mean of its divisors is an integer number (1567361457).

Almost surely, 2^18538683350 is an apocalyptic number.

18538683350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18538683350 is an abundant number, since it is smaller than the sum of its proper divisors (19077991618).

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

18538683350 is a wasteful number, since it uses less digits than its factorization.

18538683350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33706720 (or 33706715 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 18538683350 in words is "eighteen billion, five hundred thirty-eight million, six hundred eighty-three thousand, three hundred fifty".