7162744689 has 9 divisors (see below), whose sum is σ = 10346553529. Its totient is φ = 4774993860.

The previous prime is 7162744637. The next prime is 7162744717. The reversal of 7162744689 is 9864472617.

The square root of 7162744689 is 84633.

It is a perfect power (a square), and thus also a powerful number.

7162744689 is a `hidden beast` number, since 7 + 1 + 627 + 4 + 4 + 6 + 8 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 7162744689 - 2⁹ = 7162744177 is a prime.

It is a super-2 number, since 2×7162744689² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7162744619) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 239794 + ... + 268004.

Almost surely, 2^7162744689 is an apocalyptic number.

7162744689 is the 84633-rd square number.

7162744689 is the 42317-th centered octagonal number.

It is an amenable number.

7162744689 is a deficient number, since it is larger than the sum of its proper divisors (3183808840).

7162744689 is an frugal number, since it uses more digits than its factorization.

7162744689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56428 (or 28214 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The cubic root of 7162744689 is about 1927.6424890248.

The spelling of 7162744689 in words is "seven billion, one hundred sixty-two million, seven hundred forty-four thousand, six hundred eighty-nine".