189307130818 has 32 divisors (see below), whose sum is σ = 312717968640. Its totient is φ = 85401907200.

The previous prime is 189307130797. The next prime is 189307130833. The reversal of 189307130818 is 818031703981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838993 + ... + 1040443.

It is an arithmetic number, because the mean of its divisors is an integer number (9772436520).

Almost surely, 2^189307130818 is an apocalyptic number.

189307130818 is a deficient number, since it is larger than the sum of its proper divisors (123410837822).

189307130818 is a wasteful number, since it uses less digits than its factorization.

189307130818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202282.

The product of its (nonzero) digits is 290304, while the sum is 49.

The spelling of 189307130818 in words is "one hundred eighty-nine billion, three hundred seven million, one hundred thirty thousand, eight hundred eighteen".