18252433450 has 24 divisors (see below), whose sum is σ = 33958888992. Its totient is φ = 7298959920.

The previous prime is 18252433439. The next prime is 18252433513. The reversal of 18252433450 is 5433425281.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 139897 + ... + 236803.

It is an arithmetic number, because the mean of its divisors is an integer number (1414953708).

Almost surely, 2^18252433450 is an apocalyptic number.

18252433450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18252433450 is a deficient number, since it is larger than the sum of its proper divisors (15706455542).

18252433450 is a wasteful number, since it uses less digits than its factorization.

18252433450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100686 (or 100681 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 18252433450 in words is "eighteen billion, two hundred fifty-two million, four hundred thirty-three thousand, four hundred fifty".