189845268611 has 4 divisors (see below), whose sum is σ = 189874713000. Its totient is φ = 189815824224.

The previous prime is 189845268607. The next prime is 189845268623. The reversal of 189845268611 is 116862548981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116862548981 = 8171 ⋅14302111.

It is a cyclic number.

It is not a de Polignac number, because 189845268611 - 2² = 189845268607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189845268661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14712521 + ... + 14725418.

It is an arithmetic number, because the mean of its divisors is an integer number (47468678250).

Almost surely, 2^189845268611 is an apocalyptic number.

189845268611 is a deficient number, since it is larger than the sum of its proper divisors (29444389).

189845268611 is an equidigital number, since it uses as much as digits as its factorization.

189845268611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29444388.

The product of its digits is 6635520, while the sum is 59.

The spelling of 189845268611 in words is "one hundred eighty-nine billion, eight hundred forty-five million, two hundred sixty-eight thousand, six hundred eleven".