67406804077 has 2 divisors, whose sum is σ = 67406804078. Its totient is φ = 67406804076.

The previous prime is 67406804071. The next prime is 67406804083. The reversal of 67406804077 is 77040860476.

It is a balanced prime because it is at equal distance from previous prime (67406804071) and next prime (67406804083).

It can be written as a sum of positive squares in only one way, i.e., 48168836676 + 19237967401 = 219474^2 + 138701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67406804077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67406804077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67406804071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33703402038 + 33703402039.

It is an arithmetic number, because the mean of its divisors is an integer number (33703402039).

Almost surely, 2^67406804077 is an apocalyptic number.

It is an amenable number.

67406804077 is a deficient number, since it is larger than the sum of its proper divisors (1).

67406804077 is an equidigital number, since it uses as much as digits as its factorization.

67406804077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1580544, while the sum is 49.

The spelling of 67406804077 in words is "sixty-seven billion, four hundred six million, eight hundred four thousand, seventy-seven".