326440136113012 has 6 divisors (see below), whose sum is σ = 571270238197778. Its totient is φ = 163220068056504.

The previous prime is 326440136112989. The next prime is 326440136113057. The reversal of 326440136113012 is 210311631044623.

It can be written as a sum of positive squares in only one way, i.e., 324083309354596 + 2356826758416 = 18002314^2 + 1535196^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40805017014123 + ... + 40805017014130.

Almost surely, 2^{326440136113012} is an apocalyptic number.

It is an amenable number.

326440136113012 is a deficient number, since it is larger than the sum of its proper divisors (244830102084766).

326440136113012 is a wasteful number, since it uses less digits than its factorization.

326440136113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81610034028257 (or 81610034028255 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 326440136113012 its reverse (210311631044623), we get a palindrome (536751767157635).

The spelling of 326440136113012 in words is "three hundred twenty-six trillion, four hundred forty billion, one hundred thirty-six million, one hundred thirteen thousand, twelve".