199358571089 has 4 divisors (see below), whose sum is σ = 199383868656. Its totient is φ = 199333273524.

The previous prime is 199358571059. The next prime is 199358571091. The reversal of 199358571089 is 980175853991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199358571089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (199358571059) 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, 12636959 + ... + 12652724.

It is an arithmetic number, because the mean of its divisors is an integer number (49845967164).

Almost surely, 2^199358571089 is an apocalyptic number.

It is an amenable number.

199358571089 is a deficient number, since it is larger than the sum of its proper divisors (25297567).

199358571089 is an equidigital number, since it uses as much as digits as its factorization.

199358571089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25297566.

The product of its (nonzero) digits is 24494400, while the sum is 65.

The spelling of 199358571089 in words is "one hundred ninety-nine billion, three hundred fifty-eight million, five hundred seventy-one thousand, eighty-nine".