80128800197 has 2 divisors, whose sum is σ = 80128800198. Its totient is φ = 80128800196.

The previous prime is 80128800179. The next prime is 80128800209. The reversal of 80128800197 is 79100882108.

Together with previous prime (80128800179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47613858436 + 32514941761 = 218206^2 + 180319^2 .

It is a cyclic number.

It is not a de Polignac number, because 80128800197 - 2²⁴ = 80112022981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80128800097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40064400098 + 40064400099.

It is an arithmetic number, because the mean of its divisors is an integer number (40064400099).

Almost surely, 2^80128800197 is an apocalyptic number.

It is an amenable number.

80128800197 is a deficient number, since it is larger than the sum of its proper divisors (1).

80128800197 is an equidigital number, since it uses as much as digits as its factorization.

80128800197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 44.

The spelling of 80128800197 in words is "eighty billion, one hundred twenty-eight million, eight hundred thousand, one hundred ninety-seven".