27613871072005 has 8 divisors (see below), whose sum is σ = 33136687324152. Its totient is φ = 22091068832448.

The previous prime is 27613871072003. The next prime is 27613871072033. The reversal of 27613871072005 is 50027017831672.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6552811543716 + 21061059528289 = 2559846^2 + 4589233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27613871072005 - 2¹ = 27613871072003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27613871072005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27613871072003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475527 + ... + 7576603.

It is an arithmetic number, because the mean of its divisors is an integer number (4142085915519).

Almost surely, 2^{27613871072005} is an apocalyptic number.

It is an amenable number.

27613871072005 is a deficient number, since it is larger than the sum of its proper divisors (5522816252147).

27613871072005 is an equidigital number, since it uses as much as digits as its factorization.

27613871072005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7006295.

The product of its (nonzero) digits is 987840, while the sum is 49.

The spelling of 27613871072005 in words is "twenty-seven trillion, six hundred thirteen billion, eight hundred seventy-one million, seventy-two thousand, five".