18224596811 has 4 divisors (see below), whose sum is σ = 18228526632. Its totient is φ = 18220666992.

The previous prime is 18224596807. The next prime is 18224596829. The reversal of 18224596811 is 11869542281.

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 18224596811 - 2² = 18224596807 is a prime.

It is a super-2 number, since 2×18224596811² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18224596891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1957946 + ... + 1967231.

It is an arithmetic number, because the mean of its divisors is an integer number (4557131658).

Almost surely, 2^18224596811 is an apocalyptic number.

18224596811 is a deficient number, since it is larger than the sum of its proper divisors (3929821).

18224596811 is an equidigital number, since it uses as much as digits as its factorization.

18224596811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929820.

The product of its digits is 276480, while the sum is 47.

The spelling of 18224596811 in words is "eighteen billion, two hundred twenty-four million, five hundred ninety-six thousand, eight hundred eleven".