9920687753 has 8 divisors (see below), whose sum is σ = 9991269000. Its totient is φ = 9850160128.

The previous prime is 9920687743. The next prime is 9920687779. The reversal of 9920687753 is 3577860299.

9920687753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6901129 + 9913786624 = 2627^2 + 99568^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9920687753 - 2¹² = 9920683657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9920687743) 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 7 ways as a sum of consecutive naturals, for example, 403625 + ... + 427497.

It is an arithmetic number, because the mean of its divisors is an integer number (1248908625).

Almost surely, 2^9920687753 is an apocalyptic number.

It is an amenable number.

9920687753 is a deficient number, since it is larger than the sum of its proper divisors (70581247).

9920687753 is a wasteful number, since it uses less digits than its factorization.

9920687753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26811.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The square root of 9920687753 is about 99602.6493272142. The cubic root of 9920687753 is about 2148.7237966465.

The spelling of 9920687753 in words is "nine billion, nine hundred twenty million, six hundred eighty-seven thousand, seven hundred fifty-three".