1093326640409 has 2 divisors, whose sum is σ = 1093326640410. Its totient is φ = 1093326640408.

The previous prime is 1093326640403. The next prime is 1093326640421. The reversal of 1093326640409 is 9040466233901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1089994464784 + 3332175625 = 1044028^2 + 57725^2 .

It is an emirp because it is prime and its reverse (9040466233901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1093326640409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1093326640403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546663320204 + 546663320205.

It is an arithmetic number, because the mean of its divisors is an integer number (546663320205).

Almost surely, 2^{1093326640409} is an apocalyptic number.

It is an amenable number.

1093326640409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1093326640409 is an equidigital number, since it uses as much as digits as its factorization.

1093326640409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 47.

The spelling of 1093326640409 in words is "one trillion, ninety-three billion, three hundred twenty-six million, six hundred forty thousand, four hundred nine".