67182096090821 has 2 divisors, whose sum is σ = 67182096090822. Its totient is φ = 67182096090820.

The previous prime is 67182096090803. The next prime is 67182096090827. The reversal of 67182096090821 is 12809069028176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54467558685796 + 12714537405025 = 7380214^2 + 3565745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67182096090821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67182096090827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33591048045410 + 33591048045411.

It is an arithmetic number, because the mean of its divisors is an integer number (33591048045411).

Almost surely, 2^{67182096090821} is an apocalyptic number.

It is an amenable number.

67182096090821 is a deficient number, since it is larger than the sum of its proper divisors (1).

67182096090821 is an equidigital number, since it uses as much as digits as its factorization.

67182096090821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 67182096090821 in words is "sixty-seven trillion, one hundred eighty-two billion, ninety-six million, ninety thousand, eight hundred twenty-one".