18297859819411 has 4 divisors (see below), whose sum is σ = 18298233149400. Its totient is φ = 18297486489424.

The previous prime is 18297859819399. The next prime is 18297859819427. The reversal of 18297859819411 is 11491895879281.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18297859819411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18297859819451) 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, 186591466 + ... + 186689503.

It is an arithmetic number, because the mean of its divisors is an integer number (4574558287350).

Almost surely, 2^{18297859819411} is an apocalyptic number.

18297859819411 is a deficient number, since it is larger than the sum of its proper divisors (373329989).

18297859819411 is an equidigital number, since it uses as much as digits as its factorization.

18297859819411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373329988.

The product of its digits is 104509440, while the sum is 73.

The spelling of 18297859819411 in words is "eighteen trillion, two hundred ninety-seven billion, eight hundred fifty-nine million, eight hundred nineteen thousand, four hundred eleven".