2891669323 has 2 divisors, whose sum is σ = 2891669324. Its totient is φ = 2891669322.

The previous prime is 2891669303. The next prime is 2891669359. The reversal of 2891669323 is 3239661982.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2891669323 is a prime.

It is not a weakly prime, because it can be changed into another prime (2891669303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445834661 + 1445834662.

It is an arithmetic number, because the mean of its divisors is an integer number (1445834662).

Almost surely, 2^2891669323 is an apocalyptic number.

2891669323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891669323 is an equidigital number, since it uses as much as digits as its factorization.

2891669323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 49.

The square root of 2891669323 is about 53774.2440486149. The cubic root of 2891669323 is about 1424.6763312081.

The spelling of 2891669323 in words is "two billion, eight hundred ninety-one million, six hundred sixty-nine thousand, three hundred twenty-three".