43103849991 has 4 divisors (see below), whose sum is σ = 57471799992. Its totient is φ = 28735899992.

The previous prime is 43103849981. The next prime is 43103850019. The reversal of 43103849991 is 19994830134.

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 43103849991 - 2¹⁴ = 43103833607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43103849981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7183974996 + ... + 7183975001.

It is an arithmetic number, because the mean of its divisors is an integer number (14367949998).

Almost surely, 2^43103849991 is an apocalyptic number.

43103849991 is a deficient number, since it is larger than the sum of its proper divisors (14367950001).

43103849991 is a wasteful number, since it uses less digits than its factorization.

43103849991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14367950000.

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 43103849991 in words is "forty-three billion, one hundred three million, eight hundred forty-nine thousand, nine hundred ninety-one".