965783218397 has 8 divisors (see below), whose sum is σ = 981838642680. Its totient is φ = 949734984960.

The previous prime is 965783218363. The next prime is 965783218423. The reversal of 965783218397 is 793812387569.

It can be written as a sum of positive squares in 4 ways, for example, as 136383228601 + 829399989796 = 369301^2 + 910714^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 965783218397 - 2³⁶ = 897063741661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965783218327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1526528 + ... + 2064425.

It is an arithmetic number, because the mean of its divisors is an integer number (122729830335).

Almost surely, 2^965783218397 is an apocalyptic number.

It is an amenable number.

965783218397 is a deficient number, since it is larger than the sum of its proper divisors (16055424283).

965783218397 is a wasteful number, since it uses less digits than its factorization.

965783218397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595423.

The product of its digits is 137168640, while the sum is 68.

The spelling of 965783218397 in words is "nine hundred sixty-five billion, seven hundred eighty-three million, two hundred eighteen thousand, three hundred ninety-seven".