77189859611 has 2 divisors, whose sum is σ = 77189859612. Its totient is φ = 77189859610.

The previous prime is 77189859569. The next prime is 77189859641. The reversal of 77189859611 is 11695898177.

It is a strong prime.

It is an emirp because it is prime and its reverse (11695898177) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77189859611 is a prime.

It is not a weakly prime, because it can be changed into another prime (77189859641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38594929805 + 38594929806.

It is an arithmetic number, because the mean of its divisors is an integer number (38594929806).

Almost surely, 2^77189859611 is an apocalyptic number.

77189859611 is a deficient number, since it is larger than the sum of its proper divisors (1).

77189859611 is an equidigital number, since it uses as much as digits as its factorization.

77189859611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 62.

The spelling of 77189859611 in words is "seventy-seven billion, one hundred eighty-nine million, eight hundred fifty-nine thousand, six hundred eleven".