18452432506 has 16 divisors (see below), whose sum is σ = 27743402016. Its totient is φ = 9204656656.

The previous prime is 18452432501. The next prime is 18452432513. The reversal of 18452432506 is 60523425481.

It is not an unprimeable number, because it can be changed into a prime (18452432501) 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 7 ways as a sum of consecutive naturals, for example, 1764465 + ... + 1774891.

It is an arithmetic number, because the mean of its divisors is an integer number (1733962626).

Almost surely, 2^18452432506 is an apocalyptic number.

18452432506 is a deficient number, since it is larger than the sum of its proper divisors (9290969510).

18452432506 is a wasteful number, since it uses less digits than its factorization.

18452432506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12413.

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 18452432506 its reverse (60523425481), we get a palindrome (78975857987).

The spelling of 18452432506 in words is "eighteen billion, four hundred fifty-two million, four hundred thirty-two thousand, five hundred six".