77121767060111 has 2 divisors, whose sum is σ = 77121767060112. Its totient is φ = 77121767060110.

The previous prime is 77121767060083. The next prime is 77121767060131. The reversal of 77121767060111 is 11106076712177.

It is a strong prime.

It is an emirp because it is prime and its reverse (11106076712177) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77121767060111 - 2⁶ = 77121767060047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77121767060131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38560883530055 + 38560883530056.

It is an arithmetic number, because the mean of its divisors is an integer number (38560883530056).

Almost surely, 2^{77121767060111} is an apocalyptic number.

77121767060111 is a deficient number, since it is larger than the sum of its proper divisors (1).

77121767060111 is an equidigital number, since it uses as much as digits as its factorization.

77121767060111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172872, while the sum is 47.

The spelling of 77121767060111 in words is "seventy-seven trillion, one hundred twenty-one billion, seven hundred sixty-seven million, sixty thousand, one hundred eleven".