3291194089409 has 2 divisors, whose sum is σ = 3291194089410. Its totient is φ = 3291194089408.

The previous prime is 3291194089369. The next prime is 3291194089429. The reversal of 3291194089409 is 9049804911923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2221411393600 + 1069782695809 = 1490440^2 + 1034303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3291194089409 is a prime.

It is not a weakly prime, because it can be changed into another prime (3291194089429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1645597044704 + 1645597044705.

It is an arithmetic number, because the mean of its divisors is an integer number (1645597044705).

Almost surely, 2^{3291194089409} is an apocalyptic number.

It is an amenable number.

3291194089409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3291194089409 is an equidigital number, since it uses as much as digits as its factorization.

3291194089409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 59.

The spelling of 3291194089409 in words is "three trillion, two hundred ninety-one billion, one hundred ninety-four million, eighty-nine thousand, four hundred nine".