80361246281 has 2 divisors, whose sum is σ = 80361246282. Its totient is φ = 80361246280.

The previous prime is 80361246271. The next prime is 80361246307. The reversal of 80361246281 is 18264216308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80335399225 + 25847056 = 283435^2 + 5084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80361246281 is a prime.

It is a super-2 number, since 2×80361246281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80361246271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40180623140 + 40180623141.

It is an arithmetic number, because the mean of its divisors is an integer number (40180623141).

Almost surely, 2^80361246281 is an apocalyptic number.

It is an amenable number.

80361246281 is a deficient number, since it is larger than the sum of its proper divisors (1).

80361246281 is an equidigital number, since it uses as much as digits as its factorization.

80361246281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 80361246281 in words is "eighty billion, three hundred sixty-one million, two hundred forty-six thousand, two hundred eighty-one".