10839642943 has 4 divisors (see below), whose sum is σ = 10881820800. Its totient is φ = 10797465088.

The previous prime is 10839642941. The next prime is 10839642959. The reversal of 10839642943 is 34924693801.

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 10839642943 - 2¹ = 10839642941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10839642941) 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, 21088543 + ... + 21089056.

It is an arithmetic number, because the mean of its divisors is an integer number (2720455200).

Almost surely, 2^10839642943 is an apocalyptic number.

10839642943 is a deficient number, since it is larger than the sum of its proper divisors (42177857).

10839642943 is an equidigital number, since it uses as much as digits as its factorization.

10839642943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42177856.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 10839642943 in words is "ten billion, eight hundred thirty-nine million, six hundred forty-two thousand, nine hundred forty-three".