9777654322211 has 4 divisors (see below), whose sum is σ = 9777662739000. Its totient is φ = 9777645905424.

The previous prime is 9777654322193. The next prime is 9777654322237. The reversal of 9777654322211 is 1122234567779.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9777654322211 - 2³⁰ = 9776580580387 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9777654322411) 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 in 3 ways as a sum of consecutive naturals, for example, 2120621 + ... + 4904318.

It is an arithmetic number, because the mean of its divisors is an integer number (2444415684750).

Almost surely, 2^{9777654322211} is an apocalyptic number.

9777654322211 is a deficient number, since it is larger than the sum of its proper divisors (8416789).

9777654322211 is a wasteful number, since it uses less digits than its factorization.

9777654322211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8416788.

The product of its digits is 8890560, while the sum is 56.

The spelling of 9777654322211 in words is "nine trillion, seven hundred seventy-seven billion, six hundred fifty-four million, three hundred twenty-two thousand, two hundred eleven".