7722168842 has 16 divisors (see below), whose sum is σ = 12596099400. Its totient is φ = 3535746048.

The previous prime is 7722168827. The next prime is 7722168871. The reversal of 7722168842 is 2488612277.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7619369521 + 102799321 = 87289^2 + 10139^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3067967 + ... + 3070482.

Almost surely, 2^7722168842 is an apocalyptic number.

7722168842 is a deficient number, since it is larger than the sum of its proper divisors (4873930558).

7722168842 is a wasteful number, since it uses less digits than its factorization.

7722168842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6138505.

The product of its digits is 602112, while the sum is 47.

The square root of 7722168842 is about 87875.8717851493. The cubic root of 7722168842 is about 1976.5740881193.

The spelling of 7722168842 in words is "seven billion, seven hundred twenty-two million, one hundred sixty-eight thousand, eight hundred forty-two".