77212616011 has 2 divisors, whose sum is σ = 77212616012. Its totient is φ = 77212616010.

The previous prime is 77212616009. The next prime is 77212616071. The reversal of 77212616011 is 11061621277.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77212616011 - 2¹ = 77212616009 is a prime.

Together with 77212616009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (77212616071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38606308005 + 38606308006.

It is an arithmetic number, because the mean of its divisors is an integer number (38606308006).

Almost surely, 2^77212616011 is an apocalyptic number.

77212616011 is a deficient number, since it is larger than the sum of its proper divisors (1).

77212616011 is an equidigital number, since it uses as much as digits as its factorization.

77212616011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 77212616011 in words is "seventy-seven billion, two hundred twelve million, six hundred sixteen thousand, eleven".