1326639883747 has 2 divisors, whose sum is σ = 1326639883748. Its totient is φ = 1326639883746.

The previous prime is 1326639883711. The next prime is 1326639883813. The reversal of 1326639883747 is 7473889366231.

It is a weak prime.

It is an emirp because it is prime and its reverse (7473889366231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1326639883747 - 2¹⁵ = 1326639850979 is a prime.

It is a super-2 number, since 2×1326639883747² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1326639883847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663319941873 + 663319941874.

It is an arithmetic number, because the mean of its divisors is an integer number (663319941874).

Almost surely, 2^{1326639883747} is an apocalyptic number.

1326639883747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326639883747 is an equidigital number, since it uses as much as digits as its factorization.

1326639883747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219469824, while the sum is 67.

The spelling of 1326639883747 in words is "one trillion, three hundred twenty-six billion, six hundred thirty-nine million, eight hundred eighty-three thousand, seven hundred forty-seven".