13168348777 has 2 divisors, whose sum is σ = 13168348778. Its totient is φ = 13168348776.

The previous prime is 13168348757. The next prime is 13168348789. The reversal of 13168348777 is 77784386131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10438913241 + 2729435536 = 102171^2 + 52244^2 .

It is a cyclic number.

It is not a de Polignac number, because 13168348777 - 2¹¹ = 13168346729 is a prime.

It is not a weakly prime, because it can be changed into another prime (13168348757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6584174388 + 6584174389.

It is an arithmetic number, because the mean of its divisors is an integer number (6584174389).

Almost surely, 2^13168348777 is an apocalyptic number.

It is an amenable number.

13168348777 is a deficient number, since it is larger than the sum of its proper divisors (1).

13168348777 is an equidigital number, since it uses as much as digits as its factorization.

13168348777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4741632, while the sum is 55.

The spelling of 13168348777 in words is "thirteen billion, one hundred sixty-eight million, three hundred forty-eight thousand, seven hundred seventy-seven".