7168022681 has 4 divisors (see below), whose sum is σ = 7589671092. Its totient is φ = 6746374272.

The previous prime is 7168022629. The next prime is 7168022737. The reversal of 7168022681 is 1862208617.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3686432656 + 3481590025 = 60716^2 + 59005^2 .

It is a cyclic number.

It is not a de Polignac number, because 7168022681 - 2²⁶ = 7100913817 is a prime.

It is a super-2 number, since 2×7168022681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7168022881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210824180 + ... + 210824213.

It is an arithmetic number, because the mean of its divisors is an integer number (1897417773).

Almost surely, 2^7168022681 is an apocalyptic number.

It is an amenable number.

7168022681 is a deficient number, since it is larger than the sum of its proper divisors (421648411).

7168022681 is a wasteful number, since it uses less digits than its factorization.

7168022681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421648410.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 7168022681 is about 84664.1759010268. The cubic root of 7168022681 is about 1928.1158449852.

The spelling of 7168022681 in words is "seven billion, one hundred sixty-eight million, twenty-two thousand, six hundred eighty-one".