199505789114 has 4 divisors (see below), whose sum is σ = 299258683674. Its totient is φ = 99752894556.

The previous prime is 199505789111. The next prime is 199505789201. The reversal of 199505789114 is 411987505991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 411987505991 = 18289 ⋅22526519.

It can be written as a sum of positive squares in only one way, i.e., 171037663489 + 28468125625 = 413567^2 + 168725^2 .

It is not an unprimeable number, because it can be changed into a prime (199505789111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49876447277 + ... + 49876447280.

Almost surely, 2^199505789114 is an apocalyptic number.

199505789114 is a deficient number, since it is larger than the sum of its proper divisors (99752894560).

199505789114 is an equidigital number, since it uses as much as digits as its factorization.

199505789114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99752894559.

The product of its (nonzero) digits is 4082400, while the sum is 59.

The spelling of 199505789114 in words is "one hundred ninety-nine billion, five hundred five million, seven hundred eighty-nine thousand, one hundred fourteen".