80898796081 has 2 divisors, whose sum is σ = 80898796082. Its totient is φ = 80898796080.

The previous prime is 80898796067. The next prime is 80898796091. The reversal of 80898796081 is 18069789808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58895523856 + 22003272225 = 242684^2 + 148335^2 .

It is a cyclic number.

It is not a de Polignac number, because 80898796081 - 2¹⁵ = 80898763313 is a prime.

It is a super-2 number, since 2×80898796081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80898796051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40449398040 + 40449398041.

It is an arithmetic number, because the mean of its divisors is an integer number (40449398041).

Almost surely, 2^80898796081 is an apocalyptic number.

It is an amenable number.

80898796081 is a deficient number, since it is larger than the sum of its proper divisors (1).

80898796081 is an equidigital number, since it uses as much as digits as its factorization.

80898796081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 64.

The spelling of 80898796081 in words is "eighty billion, eight hundred ninety-eight million, seven hundred ninety-six thousand, eighty-one".