189458287922 has 54 divisors (see below), whose sum is σ = 304881418557. Its totient is φ = 88286364288.

The previous prime is 189458287877. The next prime is 189458287927. The reversal of 189458287922 is 229782854981.

It can be written as a sum of positive squares in 2 ways, for example, as 188964959401 + 493328521 = 434701^2 + 22211^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=307781.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189458287927) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1134480683 + ... + 1134480849.

Almost surely, 2^189458287922 is an apocalyptic number.

189458287922 is a deficient number, since it is larger than the sum of its proper divisors (115423130635).

189458287922 is an frugal number, since it uses more digits than its factorization.

189458287922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 285 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 65.

The spelling of 189458287922 in words is "one hundred eighty-nine billion, four hundred fifty-eight million, two hundred eighty-seven thousand, nine hundred twenty-two".