2731423545671 has 2 divisors, whose sum is σ = 2731423545672. Its totient is φ = 2731423545670.

The previous prime is 2731423545659. The next prime is 2731423545707. The reversal of 2731423545671 is 1765453241372.

2731423545671 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2731423545671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731423565671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365711772835 + 1365711772836.

It is an arithmetic number, because the mean of its divisors is an integer number (1365711772836).

Almost surely, 2^{2731423545671} is an apocalyptic number.

2731423545671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731423545671 is an equidigital number, since it uses as much as digits as its factorization.

2731423545671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4233600, while the sum is 50.

The spelling of 2731423545671 in words is "two trillion, seven hundred thirty-one billion, four hundred twenty-three million, five hundred forty-five thousand, six hundred seventy-one".