9909631622 has 48 divisors (see below), whose sum is σ = 16970204160. Its totient is φ = 4333525680.

The previous prime is 9909631591. The next prime is 9909631631. The reversal of 9909631622 is 2261369099.

9909631622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663683 + ... + 678449.

It is an arithmetic number, because the mean of its divisors is an integer number (353545920).

Almost surely, 2^9909631622 is an apocalyptic number.

9909631622 is a deficient number, since it is larger than the sum of its proper divisors (7060572538).

9909631622 is a wasteful number, since it uses less digits than its factorization.

9909631622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14897 (or 14886 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 9909631622 is about 99547.1326658885. The cubic root of 9909631622 is about 2147.9252833773.

The spelling of 9909631622 in words is "nine billion, nine hundred nine million, six hundred thirty-one thousand, six hundred twenty-two".