2643183812 has 6 divisors (see below), whose sum is σ = 4625571678. Its totient is φ = 1321591904.

The previous prime is 2643183799. The next prime is 2643183821. The reversal of 2643183812 is 2183813462.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2390818816 + 252364996 = 48896^2 + 15886^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330397973 + ... + 330397980.

It is an arithmetic number, because the mean of its divisors is an integer number (770928613).

Almost surely, 2^2643183812 is an apocalyptic number.

It is an amenable number.

2643183812 is a deficient number, since it is larger than the sum of its proper divisors (1982387866).

2643183812 is a wasteful number, since it uses less digits than its factorization.

2643183812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660795957 (or 660795955 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 2643183812 is about 51411.9034076740. The cubic root of 2643183812 is about 1382.6400159468.

The spelling of 2643183812 in words is "two billion, six hundred forty-three million, one hundred eighty-three thousand, eight hundred twelve".