9930686775 has 96 divisors (see below), whose sum is σ = 18186336000. Its totient is φ = 4761308160.

The previous prime is 9930686771. The next prime is 9930686783. The reversal of 9930686775 is 5776860399.

It is not a de Polignac number, because 9930686775 - 2² = 9930686771 is a prime.

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 polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2436139 + ... + 2440211.

It is an arithmetic number, because the mean of its divisors is an integer number (189441000).

Almost surely, 2^9930686775 is an apocalyptic number.

9930686775 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9930686775 is a deficient number, since it is larger than the sum of its proper divisors (8255649225).

9930686775 is a wasteful number, since it uses less digits than its factorization.

9930686775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193 (or 4188 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 60.

The square root of 9930686775 is about 99652.8312442752. The cubic root of 9930686775 is about 2149.4454509924.

The spelling of 9930686775 in words is "nine billion, nine hundred thirty million, six hundred eighty-six thousand, seven hundred seventy-five".