189016977223 has 4 divisors (see below), whose sum is σ = 200135622960. Its totient is φ = 177898331488.

The previous prime is 189016977209. The next prime is 189016977263. The reversal of 189016977223 is 322779610981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322779610981 = 128147 ⋅2518823.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189016977223 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 (189016977203) 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, 5559322843 + ... + 5559322876.

It is an arithmetic number, because the mean of its divisors is an integer number (50033905740).

Almost surely, 2^189016977223 is an apocalyptic number.

189016977223 is a deficient number, since it is larger than the sum of its proper divisors (11118645737).

189016977223 is a wasteful number, since it uses less digits than its factorization.

189016977223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11118645736.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 189016977223 in words is "one hundred eighty-nine billion, sixteen million, nine hundred seventy-seven thousand, two hundred twenty-three".