9930686773 has 6 divisors (see below), whose sum is σ = 11552023446. Its totient is φ = 8512017192.

The previous prime is 9930686771. The next prime is 9930686783. The reversal of 9930686773 is 3776860399.

9930686773 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9350503204 + 580183569 = 96698^2 + 24087^2 .

It is not a de Polignac number, because 9930686773 - 2¹ = 9930686771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9930686771) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 101333490 + ... + 101333587.

It is an arithmetic number, because the mean of its divisors is an integer number (1925337241).

Almost surely, 2^9930686773 is an apocalyptic number.

It is an amenable number.

9930686773 is a deficient number, since it is larger than the sum of its proper divisors (1621336673).

9930686773 is a wasteful number, since it uses less digits than its factorization.

9930686773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202667091 (or 202667084 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 58.

The square root of 9930686773 is about 99652.8312342404. The cubic root of 9930686773 is about 2149.4454508481.

The spelling of 9930686773 in words is "nine billion, nine hundred thirty million, six hundred eighty-six thousand, seven hundred seventy-three".