1326537076013 has 2 divisors, whose sum is σ = 1326537076014. Its totient is φ = 1326537076012.

The previous prime is 1326537075973. The next prime is 1326537076201. The reversal of 1326537076013 is 3106707356231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1104344570884 + 222192505129 = 1050878^2 + 471373^2 .

It is a cyclic number.

It is not a de Polignac number, because 1326537076013 - 2¹⁴ = 1326537059629 is a prime.

It is a super-2 number, since 2×1326537076013² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1326537076913) by changing a digit.

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 as a sum of consecutive naturals, namely, 663268538006 + 663268538007.

It is an arithmetic number, because the mean of its divisors is an integer number (663268538007).

Almost surely, 2^{1326537076013} is an apocalyptic number.

It is an amenable number.

1326537076013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326537076013 is an equidigital number, since it uses as much as digits as its factorization.

1326537076013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 44.

The spelling of 1326537076013 in words is "one trillion, three hundred twenty-six billion, five hundred thirty-seven million, seventy-six thousand, thirteen".