2566420867 has 2 divisors, whose sum is σ = 2566420868. Its totient is φ = 2566420866.

The previous prime is 2566420841. The next prime is 2566420873. The reversal of 2566420867 is 7680246652.

2566420867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2566420867 is a prime.

It is not a weakly prime, because it can be changed into another prime (2566420067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283210433 + 1283210434.

It is an arithmetic number, because the mean of its divisors is an integer number (1283210434).

Almost surely, 2^2566420867 is an apocalyptic number.

2566420867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566420867 is an equidigital number, since it uses as much as digits as its factorization.

2566420867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 2566420867 is about 50659.8545892110. The cubic root of 2566420867 is about 1369.1235033265.

The spelling of 2566420867 in words is "two billion, five hundred sixty-six million, four hundred twenty thousand, eight hundred sixty-seven".