6820291043 has 4 divisors (see below), whose sum is σ = 6820740120. Its totient is φ = 6819841968.

The previous prime is 6820291003. The next prime is 6820291057. The reversal of 6820291043 is 3401920286.

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 6820291043 - 2¹² = 6820286947 is a prime.

It is a super-2 number, since 2×6820291043² = 93032739822452055698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6820290994 and 6820291012.

It is not an unprimeable number, because it can be changed into a prime (6820291003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200930 + ... + 232407.

It is an arithmetic number, because the mean of its divisors is an integer number (1705185030).

Almost surely, 2^6820291043 is an apocalyptic number.

6820291043 is a deficient number, since it is larger than the sum of its proper divisors (449077).

6820291043 is a wasteful number, since it uses less digits than its factorization.

6820291043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449076.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 6820291043 is about 82585.0533874018. The cubic root of 6820291043 is about 1896.4190208193.

The spelling of 6820291043 in words is "six billion, eight hundred twenty million, two hundred ninety-one thousand, forty-three".