189973023433 has 8 divisors (see below), whose sum is σ = 198238276800. Its totient is φ = 181708233168.

The previous prime is 189973023431. The next prime is 189973023503. The reversal of 189973023433 is 334320379981.

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 189973023433 - 2¹ = 189973023431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189973023431) 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, 919623 + ... + 1107091.

It is an arithmetic number, because the mean of its divisors is an integer number (24779784600).

Almost surely, 2^189973023433 is an apocalyptic number.

It is an amenable number.

189973023433 is a deficient number, since it is larger than the sum of its proper divisors (8265253367).

189973023433 is a wasteful number, since it uses less digits than its factorization.

189973023433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231551.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 189973023433 in words is "one hundred eighty-nine billion, nine hundred seventy-three million, twenty-three thousand, four hundred thirty-three".