5722661906 has 16 divisors (see below), whose sum is σ = 9494147544. Its totient is φ = 2569843584.

The previous prime is 5722661899. The next prime is 5722661911. The reversal of 5722661906 is 6091662275.

It can be written as a sum of positive squares in 4 ways, for example, as 3974167681 + 1748494225 = 63041^2 + 41815^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2973395 + ... + 2975318.

Almost surely, 2^5722661906 is an apocalyptic number.

5722661906 is a deficient number, since it is larger than the sum of its proper divisors (3771485638).

5722661906 is a wasteful number, since it uses less digits than its factorization.

5722661906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5948765.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 5722661906 is about 75648.2776142326. The cubic root of 5722661906 is about 1788.6801862459.

The spelling of 5722661906 in words is "five billion, seven hundred twenty-two million, six hundred sixty-one thousand, nine hundred six".