9875992009 has 16 divisors (see below), whose sum is σ = 10812783744. Its totient is φ = 8965152000.

The previous prime is 9875992001. The next prime is 9875992013. The reversal of 9875992009 is 9002995789.

It is a cyclic number.

It is not a de Polignac number, because 9875992009 - 2³ = 9875992001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9875992001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356782 + ... + 383464.

It is an arithmetic number, because the mean of its divisors is an integer number (675798984).

Almost surely, 2^9875992009 is an apocalyptic number.

It is an amenable number.

9875992009 is a deficient number, since it is larger than the sum of its proper divisors (936791735).

9875992009 is a wasteful number, since it uses less digits than its factorization.

9875992009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27168.

The product of its (nonzero) digits is 3674160, while the sum is 58.

The square root of 9875992009 is about 99378.0257853818. The cubic root of 9875992009 is about 2145.4920516531.

The spelling of 9875992009 in words is "nine billion, eight hundred seventy-five million, nine hundred ninety-two thousand, nine".