9930684751 has 16 divisors (see below), whose sum is σ = 10949178240. Its totient is φ = 8948792160.

The previous prime is 9930684719. The next prime is 9930684767. The reversal of 9930684751 is 1574860399.

It is a happy number.

9930684751 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9930684751 - 2⁵ = 9930684719 is a prime.

It is a super-3 number, since 3×9930684751³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9930684791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411320 + ... + 1418338.

It is an arithmetic number, because the mean of its divisors is an integer number (684323640).

Almost surely, 2^9930684751 is an apocalyptic number.

9930684751 is a deficient number, since it is larger than the sum of its proper divisors (1018493489).

9930684751 is a wasteful number, since it uses less digits than its factorization.

9930684751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9606.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 9930684751 is about 99652.8210890188. The cubic root of 9930684751 is about 2149.4453049643.

The spelling of 9930684751 in words is "nine billion, nine hundred thirty million, six hundred eighty-four thousand, seven hundred fifty-one".