68556707827 has 2 divisors, whose sum is σ = 68556707828. Its totient is φ = 68556707826.

The previous prime is 68556707783. The next prime is 68556707831. The reversal of 68556707827 is 72870765586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68556707827 - 2¹¹ = 68556705779 is a prime.

It is not a weakly prime, because it can be changed into another prime (68556707837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34278353913 + 34278353914.

It is an arithmetic number, because the mean of its divisors is an integer number (34278353914).

Almost surely, 2^68556707827 is an apocalyptic number.

68556707827 is a deficient number, since it is larger than the sum of its proper divisors (1).

68556707827 is an equidigital number, since it uses as much as digits as its factorization.

68556707827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39513600, while the sum is 61.

The spelling of 68556707827 in words is "sixty-eight billion, five hundred fifty-six million, seven hundred seven thousand, eight hundred twenty-seven".