6736844642 has 12 divisors (see below), whose sum is σ = 11107442598. Its totient is φ = 3062202000.

The previous prime is 6736844627. The next prime is 6736844651. The reversal of 6736844642 is 2464486376.

It can be written as a sum of positive squares in only one way, i.e., 3425877961 + 3310966681 = 58531^2 + 57541^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13918859 + ... + 13919342.

Almost surely, 2^6736844642 is an apocalyptic number.

6736844642 is a deficient number, since it is larger than the sum of its proper divisors (4370597956).

6736844642 is a wasteful number, since it uses less digits than its factorization.

6736844642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27838225 (or 27838214 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 50.

The square root of 6736844642 is about 82078.2836199686. The cubic root of 6736844642 is about 1888.6530198901.

The spelling of 6736844642 in words is "six billion, seven hundred thirty-six million, eight hundred forty-four thousand, six hundred forty-two".