2871721063 has 2 divisors, whose sum is σ = 2871721064. Its totient is φ = 2871721062.

The previous prime is 2871721049. The next prime is 2871721091. The reversal of 2871721063 is 3601271782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2871721063 - 2¹³ = 2871712871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2871721003) 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, 1435860531 + 1435860532.

It is an arithmetic number, because the mean of its divisors is an integer number (1435860532).

Almost surely, 2^2871721063 is an apocalyptic number.

2871721063 is a deficient number, since it is larger than the sum of its proper divisors (1).

2871721063 is an equidigital number, since it uses as much as digits as its factorization.

2871721063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 2871721063 is about 53588.4415056083. The cubic root of 2871721063 is about 1421.3927126555.

The spelling of 2871721063 in words is "two billion, eight hundred seventy-one million, seven hundred twenty-one thousand, sixty-three".