2643133871 has 16 divisors (see below), whose sum is σ = 3366754560. Its totient is φ = 2020049280.

The previous prime is 2643133859. The next prime is 2643133879. The reversal of 2643133871 is 1783313462.

It is a cyclic number.

It is not a de Polignac number, because 2643133871 - 2¹⁰ = 2643132847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643133879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582245 + ... + 586766.

It is an arithmetic number, because the mean of its divisors is an integer number (210422160).

Almost surely, 2^2643133871 is an apocalyptic number.

2643133871 is a deficient number, since it is larger than the sum of its proper divisors (723620689).

2643133871 is a wasteful number, since it uses less digits than its factorization.

2643133871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169054.

The product of its digits is 72576, while the sum is 38.

The square root of 2643133871 is about 51411.4177104658. The cubic root of 2643133871 is about 1382.6313079057.

The spelling of 2643133871 in words is "two billion, six hundred forty-three million, one hundred thirty-three thousand, eight hundred seventy-one".