1845008899 has 4 divisors (see below), whose sum is σ = 1856328136. Its totient is φ = 1833689664.

The previous prime is 1845008887. The next prime is 1845008933. The reversal of 1845008899 is 9988005481.

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 1845008899 - 2⁷ = 1845008771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1845003899) 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, 5659374 + ... + 5659699.

It is an arithmetic number, because the mean of its divisors is an integer number (464082034).

Almost surely, 2^1845008899 is an apocalyptic number.

1845008899 is a deficient number, since it is larger than the sum of its proper divisors (11319237).

1845008899 is a wasteful number, since it uses less digits than its factorization.

1845008899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11319236.

The product of its (nonzero) digits is 829440, while the sum is 52.

The square root of 1845008899 is about 42953.5667785575. The cubic root of 1845008899 is about 1226.4960533901.

The spelling of 1845008899 in words is "one billion, eight hundred forty-five million, eight thousand, eight hundred ninety-nine".