18033613073 has 32 divisors (see below), whose sum is σ = 22008070656. Its totient is φ = 14424772608.

The previous prime is 18033613067. The next prime is 18033613097. The reversal of 18033613073 is 37031633081.

It is a cyclic number.

It is not a de Polignac number, because 18033613073 - 2²² = 18029418769 is a prime.

It is a super-2 number, since 2×18033613073² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18033613033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7290965 + ... + 7293437.

It is an arithmetic number, because the mean of its divisors is an integer number (687752208).

Almost surely, 2^18033613073 is an apocalyptic number.

It is an amenable number.

18033613073 is a deficient number, since it is larger than the sum of its proper divisors (3974457583).

18033613073 is a wasteful number, since it uses less digits than its factorization.

18033613073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993.

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 18033613073 in words is "eighteen billion, thirty-three million, six hundred thirteen thousand, seventy-three".