2756242943 has 4 divisors (see below), whose sum is σ = 2756572728. Its totient is φ = 2755913160.

The previous prime is 2756242913. The next prime is 2756242981. The reversal of 2756242943 is 3492426572.

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 2756242943 - 2¹⁰ = 2756241919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2756242894 and 2756242903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2756242913) 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, 152021 + ... + 169182.

It is an arithmetic number, because the mean of its divisors is an integer number (689143182).

Almost surely, 2^2756242943 is an apocalyptic number.

2756242943 is a deficient number, since it is larger than the sum of its proper divisors (329785).

2756242943 is an equidigital number, since it uses as much as digits as its factorization.

2756242943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329784.

The product of its digits is 725760, while the sum is 44.

The square root of 2756242943 is about 52499.9327904332. The cubic root of 2756242943 is about 1402.0790441887.

The spelling of 2756242943 in words is "two billion, seven hundred fifty-six million, two hundred forty-two thousand, nine hundred forty-three".