849449944943 has 2 divisors, whose sum is σ = 849449944944. Its totient is φ = 849449944942.

The previous prime is 849449944933. The next prime is 849449944961. The reversal of 849449944943 is 349449944948.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 849449944943 - 2⁶ = 849449944879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849449944933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424724972471 + 424724972472.

It is an arithmetic number, because the mean of its divisors is an integer number (424724972472).

Almost surely, 2^849449944943 is an apocalyptic number.

849449944943 is a deficient number, since it is larger than the sum of its proper divisors (1).

849449944943 is an equidigital number, since it uses as much as digits as its factorization.

849449944943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 644972544, while the sum is 71.

The spelling of 849449944943 in words is "eight hundred forty-nine billion, four hundred forty-nine million, nine hundred forty-four thousand, nine hundred forty-three".