67701328169 has 2 divisors, whose sum is σ = 67701328170. Its totient is φ = 67701328168.

The previous prime is 67701328133. The next prime is 67701328171. The reversal of 67701328169 is 96182310776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40960902544 + 26740425625 = 202388^2 + 163525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67701328169 is a prime.

It is a super-2 number, since 2×67701328169² (a number of 22 digits) contains 22 as substring.

Together with 67701328171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67701328109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33850664084 + 33850664085.

It is an arithmetic number, because the mean of its divisors is an integer number (33850664085).

Almost surely, 2^67701328169 is an apocalyptic number.

It is an amenable number.

67701328169 is a deficient number, since it is larger than the sum of its proper divisors (1).

67701328169 is an equidigital number, since it uses as much as digits as its factorization.

67701328169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 67701328169 in words is "sixty-seven billion, seven hundred one million, three hundred twenty-eight thousand, one hundred sixty-nine".