18091023733 has 4 divisors (see below), whose sum is σ = 18181933600. Its totient is φ = 18000113868.

The previous prime is 18091023701. The next prime is 18091023761. The reversal of 18091023733 is 33732019081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18091023733 - 2⁵ = 18091023701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18091023692 and 18091023701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18091023133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45454635 + ... + 45455032.

It is an arithmetic number, because the mean of its divisors is an integer number (4545483400).

Almost surely, 2^18091023733 is an apocalyptic number.

It is an amenable number.

18091023733 is a deficient number, since it is larger than the sum of its proper divisors (90909867).

18091023733 is an equidigital number, since it uses as much as digits as its factorization.

18091023733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90909866.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 18091023733 in words is "eighteen billion, ninety-one million, twenty-three thousand, seven hundred thirty-three".