868663297241 has 2 divisors, whose sum is σ = 868663297242. Its totient is φ = 868663297240.

The previous prime is 868663297237. The next prime is 868663297301. The reversal of 868663297241 is 142792366868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 625081565641 + 243581731600 = 790621^2 + 493540^2 .

It is a cyclic number.

It is not a de Polignac number, because 868663297241 - 2² = 868663297237 is a prime.

It is not a weakly prime, because it can be changed into another prime (868663291241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434331648620 + 434331648621.

It is an arithmetic number, because the mean of its divisors is an integer number (434331648621).

Almost surely, 2^868663297241 is an apocalyptic number.

It is an amenable number.

868663297241 is a deficient number, since it is larger than the sum of its proper divisors (1).

868663297241 is an equidigital number, since it uses as much as digits as its factorization.

868663297241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41803776, while the sum is 62.

The spelling of 868663297241 in words is "eight hundred sixty-eight billion, six hundred sixty-three million, two hundred ninety-seven thousand, two hundred forty-one".