77980808299 has 2 divisors, whose sum is σ = 77980808300. Its totient is φ = 77980808298.

The previous prime is 77980808249. The next prime is 77980808359. The reversal of 77980808299 is 99280808977.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77980808299 is a prime.

It is not a weakly prime, because it can be changed into another prime (77980808249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38990404149 + 38990404150.

It is an arithmetic number, because the mean of its divisors is an integer number (38990404150).

Almost surely, 2^77980808299 is an apocalyptic number.

77980808299 is a deficient number, since it is larger than the sum of its proper divisors (1).

77980808299 is an equidigital number, since it uses as much as digits as its factorization.

77980808299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36578304, while the sum is 67.

The spelling of 77980808299 in words is "seventy-seven billion, nine hundred eighty million, eight hundred eight thousand, two hundred ninety-nine".