9823815245 has 16 divisors (see below), whose sum is σ = 12657835008. Its totient is φ = 7292570880.

The previous prime is 9823815227. The next prime is 9823815251. The reversal of 9823815245 is 5425183289.

It is a happy number.

It is not a de Polignac number, because 9823815245 - 2⁶ = 9823815181 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 9823815245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 807869 + ... + 819938.

It is an arithmetic number, because the mean of its divisors is an integer number (791114688).

Almost surely, 2^9823815245 is an apocalyptic number.

It is an amenable number.

9823815245 is a deficient number, since it is larger than the sum of its proper divisors (2834019763).

9823815245 is a wasteful number, since it uses less digits than its factorization.

9823815245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627900.

The product of its digits is 691200, while the sum is 47.

The square root of 9823815245 is about 99115.1615294048. The cubic root of 9823815245 is about 2141.7070291784.

The spelling of 9823815245 in words is "nine billion, eight hundred twenty-three million, eight hundred fifteen thousand, two hundred forty-five".