189337448723 has 4 divisors (see below), whose sum is σ = 191618622888. Its totient is φ = 187056274560.

The previous prime is 189337448719. The next prime is 189337448771. The reversal of 189337448723 is 327844733981.

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 189337448723 - 2² = 189337448719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189337448123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140586958 + ... + 1140587123.

It is an arithmetic number, because the mean of its divisors is an integer number (47904655722).

Almost surely, 2^189337448723 is an apocalyptic number.

189337448723 is a deficient number, since it is larger than the sum of its proper divisors (2281174165).

189337448723 is an equidigital number, since it uses as much as digits as its factorization.

189337448723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281174164.

The product of its digits is 24385536, while the sum is 59.

The spelling of 189337448723 in words is "one hundred eighty-nine billion, three hundred thirty-seven million, four hundred forty-eight thousand, seven hundred twenty-three".