199788432743 has 8 divisors (see below), whose sum is σ = 206421941376. Its totient is φ = 193166719200.

The previous prime is 199788432721. The next prime is 199788432773. The reversal of 199788432743 is 347234887991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 199788432743 - 2³⁰ = 198714690919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199788432743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199788432713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2914328 + ... + 2982093.

It is an arithmetic number, because the mean of its divisors is an integer number (25802742672).

Almost surely, 2^199788432743 is an apocalyptic number.

199788432743 is a deficient number, since it is larger than the sum of its proper divisors (6633508633).

199788432743 is a wasteful number, since it uses less digits than its factorization.

199788432743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897545.

The product of its digits is 73156608, while the sum is 65.

The spelling of 199788432743 in words is "one hundred ninety-nine billion, seven hundred eighty-eight million, four hundred thirty-two thousand, seven hundred forty-three".