200918491383187 has 2 divisors, whose sum is σ = 200918491383188. Its totient is φ = 200918491383186.

The previous prime is 200918491383179. The next prime is 200918491383221. The reversal of 200918491383187 is 781383194819002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200918491383187 - 2³ = 200918491383179 is a prime.

It is not a weakly prime, because it can be changed into another prime (200918492383187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100459245691593 + 100459245691594.

It is an arithmetic number, because the mean of its divisors is an integer number (100459245691594).

Almost surely, 2^{200918491383187} is an apocalyptic number.

200918491383187 is a deficient number, since it is larger than the sum of its proper divisors (1).

200918491383187 is an equidigital number, since it uses as much as digits as its factorization.

200918491383187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 64.

The spelling of 200918491383187 in words is "two hundred trillion, nine hundred eighteen billion, four hundred ninety-one million, three hundred eighty-three thousand, one hundred eighty-seven".