18200191001093 has 4 divisors (see below), whose sum is σ = 18214310623020. Its totient is φ = 18186071379168.

The previous prime is 18200191001053. The next prime is 18200191001141. The reversal of 18200191001093 is 39010019100281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10145390743489 + 8054800257604 = 3185183^2 + 2838098^2 .

It is a cyclic number.

It is not a de Polignac number, because 18200191001093 - 2⁸ = 18200191000837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18200191001053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7059809030 + ... + 7059811607.

It is an arithmetic number, because the mean of its divisors is an integer number (4553577655755).

Almost surely, 2^{18200191001093} is an apocalyptic number.

It is an amenable number.

18200191001093 is a deficient number, since it is larger than the sum of its proper divisors (14119621927).

18200191001093 is a wasteful number, since it uses less digits than its factorization.

18200191001093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14119621926.

The product of its (nonzero) digits is 3888, while the sum is 35.

The spelling of 18200191001093 in words is "eighteen trillion, two hundred billion, one hundred ninety-one million, one thousand, ninety-three".