18452267499 has 4 divisors (see below), whose sum is σ = 24603023336. Its totient is φ = 12301511664.

The previous prime is 18452267489. The next prime is 18452267501. The reversal of 18452267499 is 99476225481.

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

It is not a de Polignac number, because 18452267499 - 2¹⁷ = 18452136427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18452267419) 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, 3075377914 + ... + 3075377919.

It is an arithmetic number, because the mean of its divisors is an integer number (6150755834).

Almost surely, 2^18452267499 is an apocalyptic number.

18452267499 is a deficient number, since it is larger than the sum of its proper divisors (6150755837).

18452267499 is an equidigital number, since it uses as much as digits as its factorization.

18452267499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6150755836.

The product of its digits is 8709120, while the sum is 57.

The spelling of 18452267499 in words is "eighteen billion, four hundred fifty-two million, two hundred sixty-seven thousand, four hundred ninety-nine".