189940632955 has 8 divisors (see below), whose sum is σ = 228000839472. Its totient is φ = 151904453088.

The previous prime is 189940632943. The next prime is 189940632997. The reversal of 189940632955 is 559236049981.

189940632955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189940632955 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189940632893 and 189940632902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5989264 + ... + 6020893.

It is an arithmetic number, because the mean of its divisors is an integer number (28500104934).

Almost surely, 2^189940632955 is an apocalyptic number.

189940632955 is a deficient number, since it is larger than the sum of its proper divisors (38060206517).

189940632955 is a wasteful number, since it uses less digits than its factorization.

189940632955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12013325.

The product of its (nonzero) digits is 20995200, while the sum is 61.

The spelling of 189940632955 in words is "one hundred eighty-nine billion, nine hundred forty million, six hundred thirty-two thousand, nine hundred fifty-five".