27713225709 has 20 divisors (see below), whose sum is σ = 44583291676. Its totient is φ = 17054292096.

The previous prime is 27713225707. The next prime is 27713225719. The reversal of 27713225709 is 90752231772.

27713225709 is a `hidden beast` number, since 2 + 7 + 71 + 3 + 2 + 2 + 570 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1126944900 + 26586280809 = 33570^2 + 163053^2 .

It is not a de Polignac number, because 27713225709 - 2¹ = 27713225707 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27713225707) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13158124 + ... + 13160229.

Almost surely, 2^27713225709 is an apocalyptic number.

It is an amenable number.

27713225709 is a deficient number, since it is larger than the sum of its proper divisors (16870065967).

27713225709 is a wasteful number, since it uses less digits than its factorization.

27713225709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26318378 (or 26318369 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The spelling of 27713225709 in words is "twenty-seven billion, seven hundred thirteen million, two hundred twenty-five thousand, seven hundred nine".