3291199744673 has 2 divisors, whose sum is σ = 3291199744674. Its totient is φ = 3291199744672.

The previous prime is 3291199744661. The next prime is 3291199744691. The reversal of 3291199744673 is 3764479911923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3251703349504 + 39496395169 = 1803248^2 + 198737^2 .

It is a cyclic number.

It is not a de Polignac number, because 3291199744673 - 2²⁶ = 3291132635809 is a prime.

It is not a weakly prime, because it can be changed into another prime (3291199741673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1645599872336 + 1645599872337.

It is an arithmetic number, because the mean of its divisors is an integer number (1645599872337).

Almost surely, 2^{3291199744673} is an apocalyptic number.

It is an amenable number.

3291199744673 is a deficient number, since it is larger than the sum of its proper divisors (1).

3291199744673 is an equidigital number, since it uses as much as digits as its factorization.

3291199744673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61725888, while the sum is 65.

The spelling of 3291199744673 in words is "three trillion, two hundred ninety-one billion, one hundred ninety-nine million, seven hundred forty-four thousand, six hundred seventy-three".