18033266894 has 8 divisors (see below), whose sum is σ = 27050507328. Its totient is φ = 9016431120.

The previous prime is 18033266843. The next prime is 18033266903. The reversal of 18033266894 is 49866233081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64514 + ... + 200570.

It is an arithmetic number, because the mean of its divisors is an integer number (3381313416).

Almost surely, 2^18033266894 is an apocalyptic number.

18033266894 is a deficient number, since it is larger than the sum of its proper divisors (9017240434).

18033266894 is a wasteful number, since it uses less digits than its factorization.

18033266894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202330.

The product of its (nonzero) digits is 1492992, while the sum is 50.

Adding to 18033266894 its sum of digits (50), we get a square (18033266944 = 134288²).

The spelling of 18033266894 in words is "eighteen billion, thirty-three million, two hundred sixty-six thousand, eight hundred ninety-four".