192977588377697 has 2 divisors, whose sum is σ = 192977588377698. Its totient is φ = 192977588377696.

The previous prime is 192977588377669. The next prime is 192977588377813. The reversal of 192977588377697 is 796773885779291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172284105495616 + 20693482882081 = 13125704^2 + 4549009^2 .

It is a cyclic number.

It is not a de Polignac number, because 192977588377697 - 2²² = 192977584183393 is a prime.

It is not a weakly prime, because it can be changed into another prime (192977588377627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96488794188848 + 96488794188849.

It is an arithmetic number, because the mean of its divisors is an integer number (96488794188849).

Almost surely, 2^{192977588377697} is an apocalyptic number.

It is an amenable number.

192977588377697 is a deficient number, since it is larger than the sum of its proper divisors (1).

192977588377697 is an equidigital number, since it uses as much as digits as its factorization.

192977588377697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141146530560, while the sum is 95.

The spelling of 192977588377697 in words is "one hundred ninety-two trillion, nine hundred seventy-seven billion, five hundred eighty-eight million, three hundred seventy-seven thousand, six hundred ninety-seven".