27586620013 has 4 divisors (see below), whose sum is σ = 27839708380. Its totient is φ = 27333531648.

The previous prime is 27586619941. The next prime is 27586620037. The reversal of 27586620013 is 31002668572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12561253929 + 15025366084 = 112077^2 + 122578^2 .

It is a cyclic number.

It is not a de Polignac number, because 27586620013 - 2¹³ = 27586611821 is a prime.

It is a super-2 number, since 2×27586620013² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27586620043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126544020 + ... + 126544237.

It is an arithmetic number, because the mean of its divisors is an integer number (6959927095).

Almost surely, 2^27586620013 is an apocalyptic number.

It is an amenable number.

27586620013 is a deficient number, since it is larger than the sum of its proper divisors (253088367).

27586620013 is a wasteful number, since it uses less digits than its factorization.

27586620013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253088366.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 27586620013 in words is "twenty-seven billion, five hundred eighty-six million, six hundred twenty thousand, thirteen".