6823964143 has 4 divisors (see below), whose sum is σ = 6824275920. Its totient is φ = 6823652368.

The previous prime is 6823964129. The next prime is 6823964149. The reversal of 6823964143 is 3414693286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6823964143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6823964093 and 6823964102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6823964149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120358 + ... + 167731.

It is an arithmetic number, because the mean of its divisors is an integer number (1706068980).

Almost surely, 2^6823964143 is an apocalyptic number.

6823964143 is a deficient number, since it is larger than the sum of its proper divisors (311777).

6823964143 is a wasteful number, since it uses less digits than its factorization.

6823964143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311776.

The product of its digits is 746496, while the sum is 46.

The square root of 6823964143 is about 82607.2886796317. The cubic root of 6823964143 is about 1896.7594015332.

The spelling of 6823964143 in words is "six billion, eight hundred twenty-three million, nine hundred sixty-four thousand, one hundred forty-three".