27945650561118 has 32 divisors (see below), whose sum is σ = 59743829843712. Its totient is φ = 8692885291200.

The previous prime is 27945650561099. The next prime is 27945650561203. The reversal of 27945650561118 is 81116505654972.

It is a super-2 number, since 2×27945650561118² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 2469564028 + ... + 2469575343.

It is an arithmetic number, because the mean of its divisors is an integer number (1866994682616).

Almost surely, 2^{27945650561118} is an apocalyptic number.

27945650561118 is an abundant number, since it is smaller than the sum of its proper divisors (31798179282594).

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

27945650561118 is a wasteful number, since it uses less digits than its factorization.

27945650561118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4939139440.

The product of its (nonzero) digits is 18144000, while the sum is 60.

The spelling of 27945650561118 in words is "twenty-seven trillion, nine hundred forty-five billion, six hundred fifty million, five hundred sixty-one thousand, one hundred eighteen".