2564869184039 has 2 divisors, whose sum is σ = 2564869184040. Its totient is φ = 2564869184038.

The previous prime is 2564869183999. The next prime is 2564869184081. The reversal of 2564869184039 is 9304819684652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2564869184039 - 2²⁸ = 2564600748583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564869184089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282434592019 + 1282434592020.

It is an arithmetic number, because the mean of its divisors is an integer number (1282434592020).

Almost surely, 2^{2564869184039} is an apocalyptic number.

2564869184039 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564869184039 is an equidigital number, since it uses as much as digits as its factorization.

2564869184039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89579520, while the sum is 65.

The spelling of 2564869184039 in words is "two trillion, five hundred sixty-four billion, eight hundred sixty-nine million, one hundred eighty-four thousand, thirty-nine".