2018391110193 has 8 divisors (see below), whose sum is σ = 2691304806528. Its totient is φ = 1345535743664.

The previous prime is 2018391110171. The next prime is 2018391110231. The reversal of 2018391110193 is 3910111938102.

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 2018391110193 - 2²⁰ = 2018390061617 is a prime.

It is a super-4 number, since 4×2018391110193⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2018391118193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14501646 + ... + 14640167.

It is an arithmetic number, because the mean of its divisors is an integer number (336413100816).

Almost surely, 2^{2018391110193} is an apocalyptic number.

It is an amenable number.

2018391110193 is a deficient number, since it is larger than the sum of its proper divisors (672913696335).

2018391110193 is a wasteful number, since it uses less digits than its factorization.

2018391110193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29164903.

The product of its (nonzero) digits is 11664, while the sum is 39.

The spelling of 2018391110193 in words is "two trillion, eighteen billion, three hundred ninety-one million, one hundred ten thousand, one hundred ninety-three".