5631776771365 has 16 divisors (see below), whose sum is σ = 6900714516528. Its totient is φ = 4411267485696.

The previous prime is 5631776771351. The next prime is 5631776771417.

5631776771365 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 523530390916 + 5108246380449 = 723554^2 + 2260143^2 .

It is a cyclic number.

It is not a de Polignac number, because 5631776771365 - 2⁹ = 5631776770853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5631776771297 and 5631776771306.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 56262132 + ... + 56362141.

It is an arithmetic number, because the mean of its divisors is an integer number (431294657283).

Almost surely, 2^{5631776771365} is an apocalyptic number.

It is an amenable number.

5631776771365 is a deficient number, since it is larger than the sum of its proper divisors (1268937745163).

5631776771365 is a wasteful number, since it uses less digits than its factorization.

5631776771365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112624488.

The product of its digits is 116688600, while the sum is 64.

The spelling of 5631776771365 in words is "five trillion, six hundred thirty-one billion, seven hundred seventy-six million, seven hundred seventy-one thousand, three hundred sixty-five".