77798000911 has 2 divisors, whose sum is σ = 77798000912. Its totient is φ = 77798000910.

The previous prime is 77798000909. The next prime is 77798000927. The reversal of 77798000911 is 11900089777.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77798000911 - 2¹ = 77798000909 is a prime.

Together with 77798000909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77798000941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38899000455 + 38899000456.

It is an arithmetic number, because the mean of its divisors is an integer number (38899000456).

Almost surely, 2^77798000911 is an apocalyptic number.

77798000911 is a deficient number, since it is larger than the sum of its proper divisors (1).

77798000911 is an equidigital number, since it uses as much as digits as its factorization.

77798000911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 49.

The spelling of 77798000911 in words is "seventy-seven billion, seven hundred ninety-eight million, nine hundred eleven", and thus it is an aban number.