9911823473 has 4 divisors (see below), whose sum is σ = 9912117360. Its totient is φ = 9911529588.

The previous prime is 9911823391. The next prime is 9911823511. The reversal of 9911823473 is 3743281199.

9911823473 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: 3743281199 = 7 ⋅534754457.

It is a cyclic number.

It is not a de Polignac number, because 9911823473 - 2⁸ = 9911823217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9911828473) 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, 88643 + ... + 166376.

It is an arithmetic number, because the mean of its divisors is an integer number (2478029340).

Almost surely, 2^9911823473 is an apocalyptic number.

It is an amenable number.

9911823473 is a deficient number, since it is larger than the sum of its proper divisors (293887).

9911823473 is a wasteful number, since it uses less digits than its factorization.

9911823473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293886.

The product of its digits is 326592, while the sum is 47.

The square root of 9911823473 is about 99558.1411688667. The cubic root of 9911823473 is about 2148.0836338688.

The spelling of 9911823473 in words is "nine billion, nine hundred eleven million, eight hundred twenty-three thousand, four hundred seventy-three".