67716882881 has 2 divisors, whose sum is σ = 67716882882. Its totient is φ = 67716882880.

The previous prime is 67716882869. The next prime is 67716882913. The reversal of 67716882881 is 18828861776.

67716882881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52411234225 + 15305648656 = 228935^2 + 123716^2 .

It is a cyclic number.

It is not a de Polignac number, because 67716882881 - 2²² = 67712688577 is a prime.

It is a super-2 number, since 2×67716882881² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67716882811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33858441440 + 33858441441.

It is an arithmetic number, because the mean of its divisors is an integer number (33858441441).

Almost surely, 2^67716882881 is an apocalyptic number.

It is an amenable number.

67716882881 is a deficient number, since it is larger than the sum of its proper divisors (1).

67716882881 is an equidigital number, since it uses as much as digits as its factorization.

67716882881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14450688, while the sum is 62.

The spelling of 67716882881 in words is "sixty-seven billion, seven hundred sixteen million, eight hundred eighty-two thousand, eight hundred eighty-one".