9777664311 has 32 divisors (see below), whose sum is σ = 13394734080. Its totient is φ = 6342395904.

The previous prime is 9777664249. The next prime is 9777664313. The reversal of 9777664311 is 1134667779.

9777664311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-9777664311 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9777664313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9410130 + ... + 9411168.

It is an arithmetic number, because the mean of its divisors is an integer number (418585440).

Almost surely, 2^9777664311 is an apocalyptic number.

9777664311 is a deficient number, since it is larger than the sum of its proper divisors (3617069769).

9777664311 is a wasteful number, since it uses less digits than its factorization.

9777664311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its digits is 1333584, while the sum is 51.

The square root of 9777664311 is about 98882.0727482995. The cubic root of 9777664311 is about 2138.3479484065.

The spelling of 9777664311 in words is "nine billion, seven hundred seventy-seven million, six hundred sixty-four thousand, three hundred eleven".