68687716303 has 2 divisors, whose sum is σ = 68687716304. Its totient is φ = 68687716302.

The previous prime is 68687716261. The next prime is 68687716309. The reversal of 68687716303 is 30361778686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68687716303 - 2¹⁷ = 68687585231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68687716309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34343858151 + 34343858152.

It is an arithmetic number, because the mean of its divisors is an integer number (34343858152).

Almost surely, 2^68687716303 is an apocalyptic number.

68687716303 is a deficient number, since it is larger than the sum of its proper divisors (1).

68687716303 is an equidigital number, since it uses as much as digits as its factorization.

68687716303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 68687716303 in words is "sixty-eight billion, six hundred eighty-seven million, seven hundred sixteen thousand, three hundred three".