9939946620 has 48 divisors (see below), whose sum is σ = 28791574560. Its totient is φ = 2559250176.

The previous prime is 9939946603. The next prime is 9939946651. The reversal of 9939946620 is 266499399.

9939946620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 2854567 + ... + 2858046.

It is an arithmetic number, because the mean of its divisors is an integer number (599824470).

Almost surely, 2^9939946620 is an apocalyptic number.

It is an amenable number.

9939946620 is an abundant number, since it is smaller than the sum of its proper divisors (18851627940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9939946620 is a wasteful number, since it uses less digits than its factorization.

9939946620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712654 (or 5712652 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 57.

The square root of 9939946620 is about 99699.2809402355. The cubic root of 9939946620 is about 2150.1133251966.

The spelling of 9939946620 in words is "nine billion, nine hundred thirty-nine million, nine hundred forty-six thousand, six hundred twenty".