9920758684 has 48 divisors (see below), whose sum is σ = 18207866880. Its totient is φ = 4724781440.

The previous prime is 9920758651. The next prime is 9920758691. The reversal of 9920758684 is 4868570299.

9920758684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9920758684² (a number of 21 digits) contains 22 as substring.

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, 3690789 + ... + 3693475.

It is an arithmetic number, because the mean of its divisors is an integer number (379330560).

Almost surely, 2^9920758684 is an apocalyptic number.

9920758684 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

9920758684 is a deficient number, since it is larger than the sum of its proper divisors (8287108196).

9920758684 is a wasteful number, since it uses less digits than its factorization.

9920758684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258 (or 3256 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The square root of 9920758684 is about 99603.0053964237. The cubic root of 9920758684 is about 2148.7289176209.

The spelling of 9920758684 in words is "nine billion, nine hundred twenty million, seven hundred fifty-eight thousand, six hundred eighty-four".