1830518899 has 4 divisors (see below), whose sum is σ = 1996929720. Its totient is φ = 1664108080.

The previous prime is 1830518891. The next prime is 1830518903. The reversal of 1830518899 is 9988150381.

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 1830518899 - 2³ = 1830518891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1830518891) 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, 83205394 + ... + 83205415.

It is an arithmetic number, because the mean of its divisors is an integer number (499232430).

Almost surely, 2^1830518899 is an apocalyptic number.

1830518899 is a deficient number, since it is larger than the sum of its proper divisors (166410821).

1830518899 is a wasteful number, since it uses less digits than its factorization.

1830518899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166410820.

The product of its (nonzero) digits is 622080, while the sum is 52.

The square root of 1830518899 is about 42784.5637934992. The cubic root of 1830518899 is about 1223.2767994442.

The spelling of 1830518899 in words is "one billion, eight hundred thirty million, five hundred eighteen thousand, eight hundred ninety-nine".