18850033512 has 48 divisors (see below), whose sum is σ = 51077089440. Its totient is φ = 6280278048.

The previous prime is 18850033511. The next prime is 18850033541. The reversal of 18850033512 is 21533005881.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18850033511) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 87133 + ... + 212819.

It is an arithmetic number, because the mean of its divisors is an integer number (1064106030).

Almost surely, 2^18850033512 is an apocalyptic number.

18850033512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18850033512 is an abundant number, since it is smaller than the sum of its proper divisors (32227055928).

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

18850033512 is a wasteful number, since it uses less digits than its factorization.

18850033512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127782 (or 127775 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 18850033512 in words is "eighteen billion, eight hundred fifty million, thirty-three thousand, five hundred twelve".