189893052871 has 8 divisors (see below), whose sum is σ = 190741630464. Its totient is φ = 189045434520.

The previous prime is 189893052851. The next prime is 189893052917. The reversal of 189893052871 is 178250398981.

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 189893052871 - 2¹⁵ = 189893020103 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 (189893052841) 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, 158470 + ... + 636316.

It is an arithmetic number, because the mean of its divisors is an integer number (23842703808).

Almost surely, 2^189893052871 is an apocalyptic number.

189893052871 is a deficient number, since it is larger than the sum of its proper divisors (848577593).

189893052871 is a wasteful number, since it uses less digits than its factorization.

189893052871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479621.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The spelling of 189893052871 in words is "one hundred eighty-nine billion, eight hundred ninety-three million, fifty-two thousand, eight hundred seventy-one".