77075903297 has 2 divisors, whose sum is σ = 77075903298. Its totient is φ = 77075903296.

The previous prime is 77075903293. The next prime is 77075903327. The reversal of 77075903297 is 79230957077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76476583936 + 599319361 = 276544^2 + 24481^2 .

It is an emirp because it is prime and its reverse (79230957077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77075903297 - 2² = 77075903293 is a prime.

It is not a weakly prime, because it can be changed into another prime (77075903293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38537951648 + 38537951649.

It is an arithmetic number, because the mean of its divisors is an integer number (38537951649).

Almost surely, 2^77075903297 is an apocalyptic number.

It is an amenable number.

77075903297 is a deficient number, since it is larger than the sum of its proper divisors (1).

77075903297 is an equidigital number, since it uses as much as digits as its factorization.

77075903297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5834430, while the sum is 56.

The spelling of 77075903297 in words is "seventy-seven billion, seventy-five million, nine hundred three thousand, two hundred ninety-seven".