199618014793 has 4 divisors (see below), whose sum is σ = 199619411860. Its totient is φ = 199616617728.

The previous prime is 199618014773. The next prime is 199618014821. The reversal of 199618014793 is 397410816991.

199618014793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397410816991 = 19 ⋅20916358789.

It can be written as a sum of positive squares in 2 ways, for example, as 121627957504 + 77990057289 = 348752^2 + 279267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199618014793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199618014773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456180 + ... + 779317.

It is an arithmetic number, because the mean of its divisors is an integer number (49904852965).

Almost surely, 2^199618014793 is an apocalyptic number.

It is an amenable number.

199618014793 is a deficient number, since it is larger than the sum of its proper divisors (1397067).

199618014793 is a wasteful number, since it uses less digits than its factorization.

199618014793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397066.

The product of its (nonzero) digits is 2939328, while the sum is 58.

The spelling of 199618014793 in words is "one hundred ninety-nine billion, six hundred eighteen million, fourteen thousand, seven hundred ninety-three".