868663264433 has 2 divisors, whose sum is σ = 868663264434. Its totient is φ = 868663264432.

The previous prime is 868663264373. The next prime is 868663264457. The reversal of 868663264433 is 334462366868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 844362507664 + 24300756769 = 918892^2 + 155887^2 .

It is a cyclic number.

It is not a de Polignac number, because 868663264433 - 2¹⁸ = 868663002289 is a prime.

It is a super-2 number, since 2×868663264433² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (868663264463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434331632216 + 434331632217.

It is an arithmetic number, because the mean of its divisors is an integer number (434331632217).

Almost surely, 2^868663264433 is an apocalyptic number.

It is an amenable number.

868663264433 is a deficient number, since it is larger than the sum of its proper divisors (1).

868663264433 is an equidigital number, since it uses as much as digits as its factorization.

868663264433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71663616, while the sum is 59.

The spelling of 868663264433 in words is "eight hundred sixty-eight billion, six hundred sixty-three million, two hundred sixty-four thousand, four hundred thirty-three".