2564281561007 has 2 divisors, whose sum is σ = 2564281561008. Its totient is φ = 2564281561006.

The previous prime is 2564281560947. The next prime is 2564281561063. The reversal of 2564281561007 is 7001651824652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2564281561007 - 2⁶ = 2564281560943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564281561207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282140780503 + 1282140780504.

It is an arithmetic number, because the mean of its divisors is an integer number (1282140780504).

Almost surely, 2^{2564281561007} is an apocalyptic number.

2564281561007 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564281561007 is an equidigital number, since it uses as much as digits as its factorization.

2564281561007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 2564281561007 in words is "two trillion, five hundred sixty-four billion, two hundred eighty-one million, five hundred sixty-one thousand, seven".