18333350850 has 24 divisors (see below), whose sum is σ = 45466710480. Its totient is φ = 4888893520.

The previous prime is 18333350843. The next prime is 18333350873. The reversal of 18333350850 is 5805333381.

It is a super-2 number, since 2×18333350850² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18333350799 and 18333350808.

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, 61111020 + ... + 61111319.

It is an arithmetic number, because the mean of its divisors is an integer number (1894446270).

Almost surely, 2^18333350850 is an apocalyptic number.

18333350850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18333350850 is an abundant number, since it is smaller than the sum of its proper divisors (27133359630).

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

18333350850 is a wasteful number, since it uses less digits than its factorization.

18333350850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122222354 (or 122222349 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 18333350850 in words is "eighteen billion, three hundred thirty-three million, three hundred fifty thousand, eight hundred fifty".