199809027059 has 4 divisors (see below), whose sum is σ = 199824480000. Its totient is φ = 199793574120.

The previous prime is 199809027031. The next prime is 199809027071. The reversal of 199809027059 is 950720908991.

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 199809027059 - 2¹⁶ = 199808961523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199809026989 and 199809027007.

It is not an unprimeable number, because it can be changed into a prime (199809027359) 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, 7707059 + ... + 7732940.

It is an arithmetic number, because the mean of its divisors is an integer number (49956120000).

Almost surely, 2^199809027059 is an apocalyptic number.

199809027059 is a deficient number, since it is larger than the sum of its proper divisors (15452941).

199809027059 is a wasteful number, since it uses less digits than its factorization.

199809027059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15452940.

The product of its (nonzero) digits is 3674160, while the sum is 59.

The spelling of 199809027059 in words is "one hundred ninety-nine billion, eight hundred nine million, twenty-seven thousand, fifty-nine".