18852154999 has 4 divisors (see below), whose sum is σ = 19671813936. Its totient is φ = 18032496064.

The previous prime is 18852154969. The next prime is 18852155033. The reversal of 18852154999 is 99945125881.

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

It is not a de Polignac number, because 18852154999 - 2²³ = 18843766391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18852154969) 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 3 ways as a sum of consecutive naturals, for example, 409829434 + ... + 409829479.

It is an arithmetic number, because the mean of its divisors is an integer number (4917953484).

Almost surely, 2^18852154999 is an apocalyptic number.

18852154999 is a deficient number, since it is larger than the sum of its proper divisors (819658937).

18852154999 is an equidigital number, since it uses as much as digits as its factorization.

18852154999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819658936.

The product of its digits is 9331200, while the sum is 61.

The spelling of 18852154999 in words is "eighteen billion, eight hundred fifty-two million, one hundred fifty-four thousand, nine hundred ninety-nine".