2643443343 has 20 divisors (see below), whose sum is σ = 4156683960. Its totient is φ = 1669542192.

The previous prime is 2643443323. The next prime is 2643443347. The reversal of 2643443343 is 3433443462.

2643443343 is a `hidden beast` number, since 2 + 643 + 4 + 4 + 3 + 3 + 4 + 3 = 666.

It is not a de Polignac number, because 2643443343 - 2³⁰ = 1569701519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2643443298 and 2643443307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643443347) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 857280 + ... + 860357.

It is an arithmetic number, because the mean of its divisors is an integer number (207834198).

Almost surely, 2^2643443343 is an apocalyptic number.

2643443343 is a deficient number, since it is larger than the sum of its proper divisors (1513240617).

2643443343 is a wasteful number, since it uses less digits than its factorization.

2643443343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717668 (or 1717659 counting only the distinct ones).

The product of its digits is 248832, while the sum is 36.

The square root of 2643443343 is about 51414.4273818157. The cubic root of 2643443343 is about 1382.6852677123.

The spelling of 2643443343 in words is "two billion, six hundred forty-three million, four hundred forty-three thousand, three hundred forty-three".