7805283282557 has 2 divisors, whose sum is σ = 7805283282558. Its totient is φ = 7805283282556.

The previous prime is 7805283282527. The next prime is 7805283282569. The reversal of 7805283282557 is 7552823825087.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5525080601401 + 2280202681156 = 2350549^2 + 1510034^2 .

It is a cyclic number.

It is not a de Polignac number, because 7805283282557 - 2¹⁰ = 7805283281533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7805283282557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7805283282527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3902641641278 + 3902641641279.

It is an arithmetic number, because the mean of its divisors is an integer number (3902641641279).

Almost surely, 2^{7805283282557} is an apocalyptic number.

It is an amenable number.

7805283282557 is a deficient number, since it is larger than the sum of its proper divisors (1).

7805283282557 is an equidigital number, since it uses as much as digits as its factorization.

7805283282557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264000, while the sum is 62.

The spelling of 7805283282557 in words is "seven trillion, eight hundred five billion, two hundred eighty-three million, two hundred eighty-two thousand, five hundred fifty-seven".