18252045843 has 4 divisors (see below), whose sum is σ = 24336061128. Its totient is φ = 12168030560.

The previous prime is 18252045841. The next prime is 18252045881. The reversal of 18252045843 is 34854025281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34854025281 = 3 ⋅11618008427.

It is a cyclic number.

It is not a de Polignac number, because 18252045843 - 2¹ = 18252045841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18252045795 and 18252045804.

It is not an unprimeable number, because it can be changed into a prime (18252045841) 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, 3042007638 + ... + 3042007643.

It is an arithmetic number, because the mean of its divisors is an integer number (6084015282).

Almost surely, 2^18252045843 is an apocalyptic number.

18252045843 is a deficient number, since it is larger than the sum of its proper divisors (6084015285).

18252045843 is an equidigital number, since it uses as much as digits as its factorization.

18252045843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6084015284.

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 18252045843 in words is "eighteen billion, two hundred fifty-two million, forty-five thousand, eight hundred forty-three".