189273682738 has 16 divisors (see below), whose sum is σ = 329788338624. Its totient is φ = 79787500560.

The previous prime is 189273682729. The next prime is 189273682757. The reversal of 189273682738 is 837286372981.

189273682738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 189273682738.

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 7 ways as a sum of consecutive naturals, for example, 110815120 + ... + 110816827.

It is an arithmetic number, because the mean of its divisors is an integer number (20611771164).

Almost surely, 2^189273682738 is an apocalyptic number.

189273682738 is a deficient number, since it is larger than the sum of its proper divisors (140514655886).

189273682738 is a wasteful number, since it uses less digits than its factorization.

189273682738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221632017.

The product of its digits is 48771072, while the sum is 64.

The spelling of 189273682738 in words is "one hundred eighty-nine billion, two hundred seventy-three million, six hundred eighty-two thousand, seven hundred thirty-eight".