2567871863 has 2 divisors, whose sum is σ = 2567871864. Its totient is φ = 2567871862.

The previous prime is 2567871841. The next prime is 2567871883. The reversal of 2567871863 is 3681787652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2567871863 - 2¹⁰ = 2567870839 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2567871833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283935931 + 1283935932.

It is an arithmetic number, because the mean of its divisors is an integer number (1283935932).

Almost surely, 2^2567871863 is an apocalyptic number.

2567871863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2567871863 is an equidigital number, since it uses as much as digits as its factorization.

2567871863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 53.

The square root of 2567871863 is about 50674.1735305076. The cubic root of 2567871863 is about 1369.3814784802.

The spelling of 2567871863 in words is "two billion, five hundred sixty-seven million, eight hundred seventy-one thousand, eight hundred sixty-three".