9936642722 has 16 divisors (see below), whose sum is σ = 15463104000. Its totient is φ = 4783885920.

The previous prime is 9936642713. The next prime is 9936642787. The reversal of 9936642722 is 2272466399.

It is a happy number.

It is a super-3 number, since 3×9936642722³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390347 + ... + 415022.

It is an arithmetic number, because the mean of its divisors is an integer number (966444000).

Almost surely, 2^9936642722 is an apocalyptic number.

9936642722 is a deficient number, since it is larger than the sum of its proper divisors (5526461278).

9936642722 is a wasteful number, since it uses less digits than its factorization.

9936642722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805601.

The product of its digits is 1959552, while the sum is 50.

The square root of 9936642722 is about 99682.7102460602. The cubic root of 9936642722 is about 2149.8750763543.

The spelling of 9936642722 in words is "nine billion, nine hundred thirty-six million, six hundred forty-two thousand, seven hundred twenty-two".