189523807199 has 64 divisors (see below), whose sum is σ = 217786060800. Its totient is φ = 163847577600.

The previous prime is 189523807171. The next prime is 189523807211. The reversal of 189523807199 is 991708325981.

It is a de Polignac number, because none of the positive numbers 2^k-189523807199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189523807159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 786405719 + ... + 786405959.

It is an arithmetic number, because the mean of its divisors is an integer number (3402907200).

Almost surely, 2^189523807199 is an apocalyptic number.

189523807199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

189523807199 is a deficient number, since it is larger than the sum of its proper divisors (28262253601).

189523807199 is a wasteful number, since it uses less digits than its factorization.

189523807199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 9797760, while the sum is 62.

The spelling of 189523807199 in words is "one hundred eighty-nine billion, five hundred twenty-three million, eight hundred seven thousand, one hundred ninety-nine".