868189303573 has 2 divisors, whose sum is σ = 868189303574. Its totient is φ = 868189303572.

The previous prime is 868189303571. The next prime is 868189303589. The reversal of 868189303573 is 375303981868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 609776697924 + 258412605649 = 780882^2 + 508343^2 .

It is a cyclic number.

It is not a de Polignac number, because 868189303573 - 2¹ = 868189303571 is a prime.

Together with 868189303571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868189303571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434094651786 + 434094651787.

It is an arithmetic number, because the mean of its divisors is an integer number (434094651787).

Almost surely, 2^868189303573 is an apocalyptic number.

It is an amenable number.

868189303573 is a deficient number, since it is larger than the sum of its proper divisors (1).

868189303573 is an equidigital number, since it uses as much as digits as its factorization.

868189303573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 868189303573 in words is "eight hundred sixty-eight billion, one hundred eighty-nine million, three hundred three thousand, five hundred seventy-three".