189022420593 has 12 divisors (see below), whose sum is σ = 273036366928. Its totient is φ = 126013109400.

The previous prime is 189022420583. The next prime is 189022420633. The reversal of 189022420593 is 395024220981.

189022420593 is a `hidden beast` number, since 18 + 9 + 0 + 2 + 2 + 42 + 0 + 593 = 666.

It is not a de Polignac number, because 189022420593 - 2⁴ = 189022420577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189022420513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 831546 + ... + 1034172.

Almost surely, 2^189022420593 is an apocalyptic number.

It is an amenable number.

189022420593 is a deficient number, since it is larger than the sum of its proper divisors (84013946335).

189022420593 is a wasteful number, since it uses less digits than its factorization.

189022420593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306284 (or 306281 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 189022420593 in words is "one hundred eighty-nine billion, twenty-two million, four hundred twenty thousand, five hundred ninety-three".