9815423344 has 30 divisors (see below), whose sum is σ = 19545301104. Its totient is φ = 4775060160.

The previous prime is 9815423333. The next prime is 9815423347. The reversal of 9815423344 is 4433245189.

It is a self number, because there is not a number n which added to its sum of digits gives 9815423344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9815423347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 202152 + ... + 245959.

Almost surely, 2^9815423344 is an apocalyptic number.

It is an amenable number.

9815423344 is a deficient number, since it is larger than the sum of its proper divisors (9729877760).

9815423344 is a wasteful number, since it uses less digits than its factorization.

9815423344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448193 (or 448150 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 9815423344 is about 99072.8183913227. The cubic root of 9815423344 is about 2141.0970111390.

The spelling of 9815423344 in words is "nine billion, eight hundred fifteen million, four hundred twenty-three thousand, three hundred forty-four".