80368681 has 2 divisors, whose sum is σ = 80368682. Its totient is φ = 80368680.

The previous prime is 80368633. The next prime is 80368703. The reversal of 80368681 is 18686308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78145600 + 2223081 = 8840^2 + 1491^2 .

It is a cyclic number.

It is not a de Polignac number, because 80368681 - 2²⁵ = 46814249 is a prime.

It is a super-2 number, since 2×80368681² = 12918249771359522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80668681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40184340 + 40184341.

It is an arithmetic number, because the mean of its divisors is an integer number (40184341).

Almost surely, 2^80368681 is an apocalyptic number.

It is an amenable number.

80368681 is a deficient number, since it is larger than the sum of its proper divisors (1).

80368681 is an equidigital number, since it uses as much as digits as its factorization.

80368681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 80368681 is about 8964.8581137684. The cubic root of 80368681 is about 431.5478397324.

The spelling of 80368681 in words is "eighty million, three hundred sixty-eight thousand, six hundred eighty-one".