67949285077 has 2 divisors, whose sum is σ = 67949285078. Its totient is φ = 67949285076.

The previous prime is 67949284987. The next prime is 67949285083. The reversal of 67949285077 is 77058294976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67937901201 + 11383876 = 260649^2 + 3374^2 .

It is a cyclic number.

It is not a de Polignac number, because 67949285077 - 2¹¹ = 67949283029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67949285087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33974642538 + 33974642539.

It is an arithmetic number, because the mean of its divisors is an integer number (33974642539).

Almost surely, 2^67949285077 is an apocalyptic number.

It is an amenable number.

67949285077 is a deficient number, since it is larger than the sum of its proper divisors (1).

67949285077 is an equidigital number, since it uses as much as digits as its factorization.

67949285077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53343360, while the sum is 64.

The spelling of 67949285077 in words is "sixty-seven billion, nine hundred forty-nine million, two hundred eighty-five thousand, seventy-seven".