189000835399 has 4 divisors (see below), whose sum is σ = 189363601440. Its totient is φ = 188638069360.

The previous prime is 189000835357. The next prime is 189000835409. The reversal of 189000835399 is 993538000981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 189000835399 - 2¹³ = 189000827207 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 (189000835339) 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, 181382239 + ... + 181383280.

It is an arithmetic number, because the mean of its divisors is an integer number (47340900360).

Almost surely, 2^189000835399 is an apocalyptic number.

189000835399 is a deficient number, since it is larger than the sum of its proper divisors (362766041).

189000835399 is an equidigital number, since it uses as much as digits as its factorization.

189000835399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362766040.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 189000835399 in words is "one hundred eighty-nine billion, eight hundred thirty-five thousand, three hundred ninety-nine".