9863929893 has 4 divisors (see below), whose sum is σ = 13151906528. Its totient is φ = 6575953260.

The previous prime is 9863929883. The next prime is 9863929949. The reversal of 9863929893 is 3989293689.

9863929893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3989293689 = 3 ⋅1329764563.

It is not a de Polignac number, because 9863929893 - 2²¹ = 9861832741 is a prime.

It is a super-2 number, since 2×9863929893² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9863929813) 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 3 ways as a sum of consecutive naturals, for example, 1643988313 + ... + 1643988318.

It is an arithmetic number, because the mean of its divisors is an integer number (3287976632).

Almost surely, 2^9863929893 is an apocalyptic number.

It is an amenable number.

9863929893 is a deficient number, since it is larger than the sum of its proper divisors (3287976635).

9863929893 is a wasteful number, since it uses less digits than its factorization.

9863929893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287976634.

The product of its digits is 45349632, while the sum is 66.

The square root of 9863929893 is about 99317.3191996240. The cubic root of 9863929893 is about 2144.6182249347.

The spelling of 9863929893 in words is "nine billion, eight hundred sixty-three million, nine hundred twenty-nine thousand, eight hundred ninety-three".