67916786941 has 2 divisors, whose sum is σ = 67916786942. Its totient is φ = 67916786940.

The previous prime is 67916786891. The next prime is 67916786981. The reversal of 67916786941 is 14968761976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66034094841 + 1882692100 = 256971^2 + 43390^2 .

It is a cyclic number.

It is not a de Polignac number, because 67916786941 - 2⁹ = 67916786429 is a prime.

It is a super-2 number, since 2×67916786941² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67916786981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33958393470 + 33958393471.

It is an arithmetic number, because the mean of its divisors is an integer number (33958393471).

Almost surely, 2^67916786941 is an apocalyptic number.

It is an amenable number.

67916786941 is a deficient number, since it is larger than the sum of its proper divisors (1).

67916786941 is an equidigital number, since it uses as much as digits as its factorization.

67916786941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 64.

The spelling of 67916786941 in words is "sixty-seven billion, nine hundred sixteen million, seven hundred eighty-six thousand, nine hundred forty-one".