27800053544 has 32 divisors (see below), whose sum is σ = 53938521000. Its totient is φ = 13416732672.

The previous prime is 27800053543. The next prime is 27800053553. The reversal of 27800053544 is 44535000872.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27643052644 + 157000900 = 166262^2 + 12530^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27800053498 and 27800053507.

It is not an unprimeable number, because it can be changed into a prime (27800053543) 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, 858512 + ... + 890304.

Almost surely, 2^27800053544 is an apocalyptic number.

It is an amenable number.

27800053544 is a deficient number, since it is larger than the sum of its proper divisors (26138467456).

27800053544 is a wasteful number, since it uses less digits than its factorization.

27800053544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35597 (or 35593 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 27800053544 in words is "twenty-seven billion, eight hundred million, fifty-three thousand, five hundred forty-four".