965217487769 has 2 divisors, whose sum is σ = 965217487770. Its totient is φ = 965217487768.

The previous prime is 965217487697. The next prime is 965217487853. The reversal of 965217487769 is 967784712569.

965217487769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (965217487697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 584666683225 + 380550804544 = 764635^2 + 616888^2 .

It is an emirp because it is prime and its reverse (967784712569) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 965217487769 - 2³² = 960922520473 is a prime.

It is a super-2 number, since 2×965217487769² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (965217487469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482608743884 + 482608743885.

It is an arithmetic number, because the mean of its divisors is an integer number (482608743885).

Almost surely, 2^965217487769 is an apocalyptic number.

It is an amenable number.

965217487769 is a deficient number, since it is larger than the sum of its proper divisors (1).

965217487769 is an equidigital number, since it uses as much as digits as its factorization.

965217487769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320060160, while the sum is 71.

The spelling of 965217487769 in words is "nine hundred sixty-five billion, two hundred seventeen million, four hundred eighty-seven thousand, seven hundred sixty-nine".