27663873128172 has 48 divisors (see below), whose sum is σ = 72527008226400. Its totient is φ = 9117681027840.

The previous prime is 27663873128141. The next prime is 27663873128209. The reversal of 27663873128172 is 27182137836672.

It is a happy number.

27663873128172 is a `hidden beast` number, since 2 + 7 + 66 + 387 + 3 + 1 + 28 + 172 = 666.

It is a super-3 number, since 3×27663873128172³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1439018329 + ... + 1439037552.

It is an arithmetic number, because the mean of its divisors is an integer number (1510979338050).

Almost surely, 2^{27663873128172} is an apocalyptic number.

It is an amenable number.

27663873128172 is an abundant number, since it is smaller than the sum of its proper divisors (44863135098228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27663873128172 is a wasteful number, since it uses less digits than its factorization.

27663873128172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878055983 (or 2878055975 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 63.

The spelling of 27663873128172 in words is "twenty-seven trillion, six hundred sixty-three billion, eight hundred seventy-three million, one hundred twenty-eight thousand, one hundred seventy-two".