67727366280697 has 2 divisors, whose sum is σ = 67727366280698. Its totient is φ = 67727366280696.

The previous prime is 67727366280683. The next prime is 67727366280781. The reversal of 67727366280697 is 79608266372776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35521468880121 + 32205897400576 = 5959989^2 + 5675024^2 .

It is a cyclic number.

It is not a de Polignac number, because 67727366280697 - 2²⁷ = 67727232062969 is a prime.

It is a super-2 number, since 2×67727366280697² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67727366280097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33863683140348 + 33863683140349.

It is an arithmetic number, because the mean of its divisors is an integer number (33863683140349).

Almost surely, 2^{67727366280697} is an apocalyptic number.

It is an amenable number.

67727366280697 is a deficient number, since it is larger than the sum of its proper divisors (1).

67727366280697 is an equidigital number, since it uses as much as digits as its factorization.

67727366280697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688505344, while the sum is 76.

The spelling of 67727366280697 in words is "sixty-seven trillion, seven hundred twenty-seven billion, three hundred sixty-six million, two hundred eighty thousand, six hundred ninety-seven".