9722035681 has 4 divisors (see below), whose sum is σ = 9928887552. Its totient is φ = 9515183812.

The previous prime is 9722035663. The next prime is 9722035693. The reversal of 9722035681 is 1865302279.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1865302279 = 673 ⋅2771623.

It is a cyclic number.

It is not a de Polignac number, because 9722035681 - 2⁵ = 9722035649 is a prime.

It is a super-2 number, since 2×9722035681² (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 (9722035601) 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, 103425865 + ... + 103425958.

It is an arithmetic number, because the mean of its divisors is an integer number (2482221888).

Almost surely, 2^9722035681 is an apocalyptic number.

It is an amenable number.

9722035681 is a deficient number, since it is larger than the sum of its proper divisors (206851871).

9722035681 is a wasteful number, since it uses less digits than its factorization.

9722035681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206851870.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 9722035681 is about 98600.3837771436. The cubic root of 9722035681 is about 2134.2849578936.

The spelling of 9722035681 in words is "nine billion, seven hundred twenty-two million, thirty-five thousand, six hundred eighty-one".