189120925747 has 8 divisors (see below), whose sum is σ = 203800706144. Its totient is φ = 174460004928.

The previous prime is 189120925657. The next prime is 189120925753. The reversal of 189120925747 is 747529021981.

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

It is a cyclic number.

It is not a de Polignac number, because 189120925747 - 2⁷ = 189120925619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189120925447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4694058 + ... + 4734175.

It is an arithmetic number, because the mean of its divisors is an integer number (25475088268).

Almost surely, 2^189120925747 is an apocalyptic number.

189120925747 is a deficient number, since it is larger than the sum of its proper divisors (14679780397).

189120925747 is a wasteful number, since it uses less digits than its factorization.

189120925747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429789.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 189120925747 in words is "one hundred eighty-nine billion, one hundred twenty million, nine hundred twenty-five thousand, seven hundred forty-seven".