97128728337799 has 2 divisors, whose sum is σ = 97128728337800. Its totient is φ = 97128728337798.

The previous prime is 97128728337791. The next prime is 97128728337841. The reversal of 97128728337799 is 99773382782179.

It is a weak prime.

It is an emirp because it is prime and its reverse (99773382782179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97128728337799 - 2³ = 97128728337791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97128728337791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48564364168899 + 48564364168900.

It is an arithmetic number, because the mean of its divisors is an integer number (48564364168900).

Almost surely, 2^{97128728337799} is an apocalyptic number.

97128728337799 is a deficient number, since it is larger than the sum of its proper divisors (1).

97128728337799 is an equidigital number, since it uses as much as digits as its factorization.

97128728337799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032758016, while the sum is 82.

The spelling of 97128728337799 in words is "ninety-seven trillion, one hundred twenty-eight billion, seven hundred twenty-eight million, three hundred thirty-seven thousand, seven hundred ninety-nine".