9915806383 has 18 divisors (see below), whose sum is σ = 11539875048. Its totient is φ = 8346381120.

The previous prime is 9915806323. The next prime is 9915806419. The reversal of 9915806383 is 3836085199.

It is not a de Polignac number, because 9915806383 - 2¹⁷ = 9915675311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9915806383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9915806323) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16070691 + ... + 16071307.

Almost surely, 2^9915806383 is an apocalyptic number.

9915806383 is a deficient number, since it is larger than the sum of its proper divisors (1624068665).

9915806383 is an frugal number, since it uses more digits than its factorization.

9915806383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 9915806383 is about 99578.1420945380. The cubic root of 9915806383 is about 2148.3713198526.

The spelling of 9915806383 in words is "nine billion, nine hundred fifteen million, eight hundred six thousand, three hundred eighty-three".