868627727993 has 2 divisors, whose sum is σ = 868627727994. Its totient is φ = 868627727992.

The previous prime is 868627727971. The next prime is 868627728041. The reversal of 868627727993 is 399727726868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503940972544 + 364686755449 = 709888^2 + 603893^2 .

It is a cyclic number.

It is not a de Polignac number, because 868627727993 - 2¹⁶ = 868627662457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 868627727993.

It is not a weakly prime, because it can be changed into another prime (868627127993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434313863996 + 434313863997.

It is an arithmetic number, because the mean of its divisors is an integer number (434313863997).

Almost surely, 2^868627727993 is an apocalyptic number.

It is an amenable number.

868627727993 is a deficient number, since it is larger than the sum of its proper divisors (1).

868627727993 is an equidigital number, since it uses as much as digits as its factorization.

868627727993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768144384, while the sum is 74.

The spelling of 868627727993 in words is "eight hundred sixty-eight billion, six hundred twenty-seven million, seven hundred twenty-seven thousand, nine hundred ninety-three".