868078943801 has 2 divisors, whose sum is σ = 868078943802. Its totient is φ = 868078943800.

The previous prime is 868078943791. The next prime is 868078943857. The reversal of 868078943801 is 108349870868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 752035840000 + 116043103801 = 867200^2 + 340651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868078943801 is a prime.

It is a super-2 number, since 2×868078943801² (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 (868078943881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434039471900 + 434039471901.

It is an arithmetic number, because the mean of its divisors is an integer number (434039471901).

Almost surely, 2^868078943801 is an apocalyptic number.

It is an amenable number.

868078943801 is a deficient number, since it is larger than the sum of its proper divisors (1).

868078943801 is an equidigital number, since it uses as much as digits as its factorization.

868078943801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18579456, while the sum is 62.

The spelling of 868078943801 in words is "eight hundred sixty-eight billion, seventy-eight million, nine hundred forty-three thousand, eight hundred one".