18805150828159 has 2 divisors, whose sum is σ = 18805150828160. Its totient is φ = 18805150828158.

The previous prime is 18805150828117. The next prime is 18805150828193. The reversal of 18805150828159 is 95182805150881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18805150828159 - 2¹⁵ = 18805150795391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18805150828097 and 18805150828106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18805150828109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9402575414079 + 9402575414080.

It is an arithmetic number, because the mean of its divisors is an integer number (9402575414080).

Almost surely, 2^{18805150828159} is an apocalyptic number.

18805150828159 is a deficient number, since it is larger than the sum of its proper divisors (1).

18805150828159 is an equidigital number, since it uses as much as digits as its factorization.

18805150828159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216000, while the sum is 61.

The spelling of 18805150828159 in words is "eighteen trillion, eight hundred five billion, one hundred fifty million, eight hundred twenty-eight thousand, one hundred fifty-nine".