9992864009 has 4 divisors (see below), whose sum is σ = 10518804240. Its totient is φ = 9466923780.

The previous prime is 9992863987. The next prime is 9992864033. The reversal of 9992864009 is 9004682999.

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.

It is a cyclic number.

It is not a de Polignac number, because 9992864009 - 2⁸ = 9992863753 is a prime.

It is a super-2 number, since 2×9992864009² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9992861009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262970087 + ... + 262970124.

It is an arithmetic number, because the mean of its divisors is an integer number (2629701060).

Almost surely, 2^9992864009 is an apocalyptic number.

It is an amenable number.

9992864009 is a deficient number, since it is larger than the sum of its proper divisors (525940231).

9992864009 is a wasteful number, since it uses less digits than its factorization.

9992864009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525940230.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The square root of 9992864009 is about 99964.3136774319. The cubic root of 9992864009 is about 2153.9221005328.

The spelling of 9992864009 in words is "nine billion, nine hundred ninety-two million, eight hundred sixty-four thousand, nine".