68675883091 has 2 divisors, whose sum is σ = 68675883092. Its totient is φ = 68675883090.

The previous prime is 68675883079. The next prime is 68675883197. The reversal of 68675883091 is 19038857686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68675883091 - 2¹⁹ = 68675358803 is a prime.

It is not a weakly prime, because it can be changed into another prime (68675883061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34337941545 + 34337941546.

It is an arithmetic number, because the mean of its divisors is an integer number (34337941546).

Almost surely, 2^68675883091 is an apocalyptic number.

68675883091 is a deficient number, since it is larger than the sum of its proper divisors (1).

68675883091 is an equidigital number, since it uses as much as digits as its factorization.

68675883091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 68675883091 in words is "sixty-eight billion, six hundred seventy-five million, eight hundred eighty-three thousand, ninety-one".