68179587851 has 2 divisors, whose sum is σ = 68179587852. Its totient is φ = 68179587850.

The previous prime is 68179587841. The next prime is 68179587871. The reversal of 68179587851 is 15878597186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68179587851 - 2²² = 68175393547 is a prime.

It is not a weakly prime, because it can be changed into another prime (68179587841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34089793925 + 34089793926.

It is an arithmetic number, because the mean of its divisors is an integer number (34089793926).

Almost surely, 2^68179587851 is an apocalyptic number.

68179587851 is a deficient number, since it is larger than the sum of its proper divisors (1).

68179587851 is an equidigital number, since it uses as much as digits as its factorization.

68179587851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33868800, while the sum is 65.

The spelling of 68179587851 in words is "sixty-eight billion, one hundred seventy-nine million, five hundred eighty-seven thousand, eight hundred fifty-one".