27655425207243 has 6 divisors (see below), whose sum is σ = 39946725299364. Its totient is φ = 18436950138156.

The previous prime is 27655425207239. The next prime is 27655425207247. The reversal of 27655425207243 is 34270252455672.

27655425207243 is a `hidden beast` number, since 2 + 7 + 6 + 5 + 5 + 4 + 2 + 520 + 72 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (27655425207239) and next prime (27655425207247).

It is not a de Polignac number, because 27655425207243 - 2² = 27655425207239 is a prime.

It is a super-3 number, since 3×27655425207243³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 27655425207243.

It is not an unprimeable number, because it can be changed into a prime (27655425207247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1536412511505 + ... + 1536412511522.

It is an arithmetic number, because the mean of its divisors is an integer number (6657787549894).

Almost surely, 2^{27655425207243} is an apocalyptic number.

27655425207243 is a deficient number, since it is larger than the sum of its proper divisors (12291300092121).

27655425207243 is a wasteful number, since it uses less digits than its factorization.

27655425207243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072825023033 (or 3072825023030 counting only the distinct ones).

The product of its (nonzero) digits is 28224000, while the sum is 54.

The spelling of 27655425207243 in words is "twenty-seven trillion, six hundred fifty-five billion, four hundred twenty-five million, two hundred seven thousand, two hundred forty-three".