9001299899 has 4 divisors (see below), whose sum is σ = 9001619760. Its totient is φ = 9000980040.

The previous prime is 9001299887. The next prime is 9001299907. The reversal of 9001299899 is 9989921009.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9001299899 - 2²⁸ = 8732864443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9001299809) 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, 113159 + ... + 175520.

It is an arithmetic number, because the mean of its divisors is an integer number (2250404940).

Almost surely, 2^9001299899 is an apocalyptic number.

9001299899 is a deficient number, since it is larger than the sum of its proper divisors (319861).

9001299899 is a wasteful number, since it uses less digits than its factorization.

9001299899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319860.

The product of its (nonzero) digits is 944784, while the sum is 56.

The square root of 9001299899 is about 94875.1806269690. The cubic root of 9001299899 is about 2080.1839626339.

The spelling of 9001299899 in words is "nine billion, one million, two hundred ninety-nine thousand, eight hundred ninety-nine".