1013327478409 has 2 divisors, whose sum is σ = 1013327478410. Its totient is φ = 1013327478408.

The previous prime is 1013327478403. The next prime is 1013327478433. The reversal of 1013327478409 is 9048747233101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 800872857225 + 212454621184 = 894915^2 + 460928^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013327478409 - 2⁵ = 1013327478377 is a prime.

It is a super-2 number, since 2×1013327478409² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1013327478403) 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, 506663739204 + 506663739205.

It is an arithmetic number, because the mean of its divisors is an integer number (506663739205).

Almost surely, 2^{1013327478409} is an apocalyptic number.

It is an amenable number.

1013327478409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013327478409 is an equidigital number, since it uses as much as digits as its factorization.

1013327478409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 1013327478409 in words is "one trillion, thirteen billion, three hundred twenty-seven million, four hundred seventy-eight thousand, four hundred nine".