18200010091 has 8 divisors (see below), whose sum is σ = 18251113104. Its totient is φ = 18148974240.

The previous prime is 18200010089. The next prime is 18200010097. The reversal of 18200010091 is 19001000281.

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

It is a cyclic number.

It is not a de Polignac number, because 18200010091 - 2¹ = 18200010089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18200010097) 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 7 ways as a sum of consecutive naturals, for example, 552696 + ... + 584698.

It is an arithmetic number, because the mean of its divisors is an integer number (2281389138).

Almost surely, 2^18200010091 is an apocalyptic number.

18200010091 is a deficient number, since it is larger than the sum of its proper divisors (51103013).

18200010091 is a wasteful number, since it uses less digits than its factorization.

18200010091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33581.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 18200010091 in words is "eighteen billion, two hundred million, ten thousand, ninety-one".