7862243955497 has 2 divisors, whose sum is σ = 7862243955498. Its totient is φ = 7862243955496.

The previous prime is 7862243955437. The next prime is 7862243955641. The reversal of 7862243955497 is 7945593422687.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7382637844201 + 479606111296 = 2717101^2 + 692536^2 .

It is a cyclic number.

It is not a de Polignac number, because 7862243955497 - 2¹⁰ = 7862243954473 is a prime.

It is a super-2 number, since 2×7862243955497² (a number of 27 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 7862243955497.

It is not a weakly prime, because it can be changed into another prime (7862243955437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3931121977748 + 3931121977749.

It is an arithmetic number, because the mean of its divisors is an integer number (3931121977749).

Almost surely, 2^{7862243955497} is an apocalyptic number.

It is an amenable number.

7862243955497 is a deficient number, since it is larger than the sum of its proper divisors (1).

7862243955497 is an equidigital number, since it uses as much as digits as its factorization.

7862243955497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 914457600, while the sum is 71.

The spelling of 7862243955497 in words is "seven trillion, eight hundred sixty-two billion, two hundred forty-three million, nine hundred fifty-five thousand, four hundred ninety-seven".