4353942991 has 4 divisors (see below), whose sum is σ = 4362810984. Its totient is φ = 4345075000.

The previous prime is 4353942961. The next prime is 4353943003. The reversal of 4353942991 is 1992493534.

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 4353942991 - 2¹⁷ = 4353811919 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4353942961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4433260 + ... + 4434241.

It is an arithmetic number, because the mean of its divisors is an integer number (1090702746).

Almost surely, 2^4353942991 is an apocalyptic number.

4353942991 is a deficient number, since it is larger than the sum of its proper divisors (8867993).

4353942991 is an equidigital number, since it uses as much as digits as its factorization.

4353942991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8867992.

The product of its digits is 1049760, while the sum is 49.

The square root of 4353942991 is about 65984.4147583352. The cubic root of 4353942991 is about 1632.9049770166.

The spelling of 4353942991 in words is "four billion, three hundred fifty-three million, nine hundred forty-two thousand, nine hundred ninety-one".