2891442264223 has 2 divisors, whose sum is σ = 2891442264224. Its totient is φ = 2891442264222.

The previous prime is 2891442264209. The next prime is 2891442264229. The reversal of 2891442264223 is 3224622441982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2891442264223 - 2³³ = 2882852329631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2891442264229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445721132111 + 1445721132112.

It is an arithmetic number, because the mean of its divisors is an integer number (1445721132112).

Almost surely, 2^{2891442264223} is an apocalyptic number.

2891442264223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891442264223 is an equidigital number, since it uses as much as digits as its factorization.

2891442264223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 49.

The spelling of 2891442264223 in words is "two trillion, eight hundred ninety-one billion, four hundred forty-two million, two hundred sixty-four thousand, two hundred twenty-three".