68786308573 has 2 divisors, whose sum is σ = 68786308574. Its totient is φ = 68786308572.

The previous prime is 68786308567. The next prime is 68786308601. The reversal of 68786308573 is 37580368786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67494481209 + 1291827364 = 259797^2 + 35942^2 .

It is a cyclic number.

It is not a de Polignac number, because 68786308573 - 2⁹ = 68786308061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68786308553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34393154286 + 34393154287.

It is an arithmetic number, because the mean of its divisors is an integer number (34393154287).

Almost surely, 2^68786308573 is an apocalyptic number.

It is an amenable number.

68786308573 is a deficient number, since it is larger than the sum of its proper divisors (1).

68786308573 is an equidigital number, since it uses as much as digits as its factorization.

68786308573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 68786308573 in words is "sixty-eight billion, seven hundred eighty-six million, three hundred eight thousand, five hundred seventy-three".