189387229783 has 4 divisors (see below), whose sum is σ = 193791584008. Its totient is φ = 184982875560.

The previous prime is 189387229771. The next prime is 189387229793. The reversal of 189387229783 is 387922783981.

189387229783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 189387229783 - 2²¹ = 189385132631 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 (189387229753) 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 3 ways as a sum of consecutive naturals, for example, 2202177048 + ... + 2202177133.

It is an arithmetic number, because the mean of its divisors is an integer number (48447896002).

Almost surely, 2^189387229783 is an apocalyptic number.

189387229783 is a deficient number, since it is larger than the sum of its proper divisors (4404354225).

189387229783 is an equidigital number, since it uses as much as digits as its factorization.

189387229783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404354224.

The product of its digits is 73156608, while the sum is 67.

The spelling of 189387229783 in words is "one hundred eighty-nine billion, three hundred eighty-seven million, two hundred twenty-nine thousand, seven hundred eighty-three".