13328009777 has 2 divisors, whose sum is σ = 13328009778. Its totient is φ = 13328009776.

The previous prime is 13328009749. The next prime is 13328009833. The reversal of 13328009777 is 77790082331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10403796001 + 2924213776 = 101999^2 + 54076^2 .

It is a cyclic number.

It is not a de Polignac number, because 13328009777 - 2¹⁶ = 13327944241 is a prime.

It is not a weakly prime, because it can be changed into another prime (13328209777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6664004888 + 6664004889.

It is an arithmetic number, because the mean of its divisors is an integer number (6664004889).

Almost surely, 2^13328009777 is an apocalyptic number.

It is an amenable number.

13328009777 is a deficient number, since it is larger than the sum of its proper divisors (1).

13328009777 is an equidigital number, since it uses as much as digits as its factorization.

13328009777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 47.

The spelling of 13328009777 in words is "thirteen billion, three hundred twenty-eight million, nine thousand, seven hundred seventy-seven".