189950903068 has 24 divisors (see below), whose sum is σ = 347374839168. Its totient is φ = 90713043696.

The previous prime is 189950903063. The next prime is 189950903071. The reversal of 189950903068 is 860309059981.

189950903068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189950903063) by changing a digit.

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, 1448646 + ... + 1574317.

It is an arithmetic number, because the mean of its divisors is an integer number (14473951632).

Almost surely, 2^189950903068 is an apocalyptic number.

It is an amenable number.

189950903068 is a deficient number, since it is larger than the sum of its proper divisors (157423936100).

189950903068 is a wasteful number, since it uses less digits than its factorization.

189950903068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023673 (or 3023671 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 58.

The spelling of 189950903068 in words is "one hundred eighty-nine billion, nine hundred fifty million, nine hundred three thousand, sixty-eight".