80897075089 has 2 divisors, whose sum is σ = 80897075090. Its totient is φ = 80897075088.

The previous prime is 80897075053. The next prime is 80897075101. The reversal of 80897075089 is 98057079808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52734529600 + 28162545489 = 229640^2 + 167817^2 .

It is a cyclic number.

It is not a de Polignac number, because 80897075089 - 2¹¹ = 80897073041 is a prime.

It is not a weakly prime, because it can be changed into another prime (80897075009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40448537544 + 40448537545.

It is an arithmetic number, because the mean of its divisors is an integer number (40448537545).

Almost surely, 2^80897075089 is an apocalyptic number.

It is an amenable number.

80897075089 is a deficient number, since it is larger than the sum of its proper divisors (1).

80897075089 is an equidigital number, since it uses as much as digits as its factorization.

80897075089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 61.

The spelling of 80897075089 in words is "eighty billion, eight hundred ninety-seven million, seventy-five thousand, eighty-nine".