18150471899 has 8 divisors (see below), whose sum is σ = 20957246688. Its totient is φ = 15397159680.

The previous prime is 18150471851. The next prime is 18150471901. The reversal of 18150471899 is 99817405181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18150471899 - 2¹⁶ = 18150406363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18150471899.

It is not an unprimeable number, because it can be changed into a prime (18150471839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13364912 + ... + 13366269.

It is an arithmetic number, because the mean of its divisors is an integer number (2619655836).

Almost surely, 2^18150471899 is an apocalyptic number.

18150471899 is a deficient number, since it is larger than the sum of its proper divisors (2806774789).

18150471899 is an equidigital number, since it uses as much as digits as its factorization.

18150471899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26731285.

The product of its (nonzero) digits is 725760, while the sum is 53.

The spelling of 18150471899 in words is "eighteen billion, one hundred fifty million, four hundred seventy-one thousand, eight hundred ninety-nine".