326231145516250 has 80 divisors (see below), whose sum is σ = 658549553092200. Its totient is φ = 120450117024000.

The previous prime is 326231145516247. The next prime is 326231145516313. The reversal of 326231145516250 is 52615541132623.

It can be written as a sum of positive squares in 20 ways, for example, as 287403429162529 + 38827716353721 = 16952977^2 + 6231189^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 326231145516250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 455763636 + ... + 456478864.

Almost surely, 2^{326231145516250} is an apocalyptic number.

326231145516250 is an abundant number, since it is smaller than the sum of its proper divisors (332318407575950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

326231145516250 is a wasteful number, since it uses less digits than its factorization.

326231145516250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743333 (or 743318 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

Adding to 326231145516250 its reverse (52615541132623), we get a palindrome (378846686648873).

The spelling of 326231145516250 in words is "three hundred twenty-six trillion, two hundred thirty-one billion, one hundred forty-five million, five hundred sixteen thousand, two hundred fifty".