80898842281 has 2 divisors, whose sum is σ = 80898842282. Its totient is φ = 80898842280.

The previous prime is 80898842273. The next prime is 80898842309. The reversal of 80898842281 is 18224889808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72997232400 + 7901609881 = 270180^2 + 88891^2 .

It is a cyclic number.

It is not a de Polignac number, because 80898842281 - 2³ = 80898842273 is a prime.

It is a super-2 number, since 2×80898842281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80898842231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40449421140 + 40449421141.

It is an arithmetic number, because the mean of its divisors is an integer number (40449421141).

Almost surely, 2^80898842281 is an apocalyptic number.

It is an amenable number.

80898842281 is a deficient number, since it is larger than the sum of its proper divisors (1).

80898842281 is an equidigital number, since it uses as much as digits as its factorization.

80898842281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4718592, while the sum is 58.

The spelling of 80898842281 in words is "eighty billion, eight hundred ninety-eight million, eight hundred forty-two thousand, two hundred eighty-one".