2565070026749 has 2 divisors, whose sum is σ = 2565070026750. Its totient is φ = 2565070026748.

The previous prime is 2565070026731. The next prime is 2565070026769. The reversal of 2565070026749 is 9476200705652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2247855511225 + 317214515524 = 1499285^2 + 563218^2 .

It is a cyclic number.

It is not a de Polignac number, because 2565070026749 - 2¹² = 2565070022653 is a prime.

It is a super-2 number, since 2×2565070026749² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2565070026749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565070026709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282535013374 + 1282535013375.

It is an arithmetic number, because the mean of its divisors is an integer number (1282535013375).

Almost surely, 2^{2565070026749} is an apocalyptic number.

It is an amenable number.

2565070026749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565070026749 is an equidigital number, since it uses as much as digits as its factorization.

2565070026749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 2565070026749 in words is "two trillion, five hundred sixty-five billion, seventy million, twenty-six thousand, seven hundred forty-nine".