68616830671 has 2 divisors, whose sum is σ = 68616830672. Its totient is φ = 68616830670.

The previous prime is 68616830657. The next prime is 68616830701. The reversal of 68616830671 is 17603861686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68616830671 - 2²¹ = 68614733519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68616830171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34308415335 + 34308415336.

It is an arithmetic number, because the mean of its divisors is an integer number (34308415336).

Almost surely, 2^68616830671 is an apocalyptic number.

68616830671 is a deficient number, since it is larger than the sum of its proper divisors (1).

68616830671 is an equidigital number, since it uses as much as digits as its factorization.

68616830671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 68616830671 in words is "sixty-eight billion, six hundred sixteen million, eight hundred thirty thousand, six hundred seventy-one".