3291199744697 has 2 divisors, whose sum is σ = 3291199744698. Its totient is φ = 3291199744696.

The previous prime is 3291199744691. The next prime is 3291199744709. The reversal of 3291199744697 is 7964479911923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2285022233641 + 1006177511056 = 1511629^2 + 1003084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3291199744697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3291199744697.

It is not a weakly prime, because it can be changed into another prime (3291199744691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1645599872348 + 1645599872349.

It is an arithmetic number, because the mean of its divisors is an integer number (1645599872349).

Almost surely, 2^{3291199744697} is an apocalyptic number.

It is an amenable number.

3291199744697 is a deficient number, since it is larger than the sum of its proper divisors (1).

3291199744697 is an equidigital number, since it uses as much as digits as its factorization.

3291199744697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185177664, while the sum is 71.

The spelling of 3291199744697 in words is "three trillion, two hundred ninety-one billion, one hundred ninety-nine million, seven hundred forty-four thousand, six hundred ninety-seven".