27853538869 has 8 divisors (see below), whose sum is σ = 30002819840. Its totient is φ = 25705215216.

The previous prime is 27853538863. The next prime is 27853538897. The reversal of 27853538869 is 96883535872.

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 27853538869 - 2¹⁷ = 27853407797 is a prime.

It is a super-3 number, since 3×27853538869³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 27853538869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27853538863) 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, 178317 + ... + 295810.

It is an arithmetic number, because the mean of its divisors is an integer number (3750352480).

Almost surely, 2^27853538869 is an apocalyptic number.

It is an amenable number.

27853538869 is a deficient number, since it is larger than the sum of its proper divisors (2149280971).

27853538869 is a wasteful number, since it uses less digits than its factorization.

27853538869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478659.

The product of its digits is 87091200, while the sum is 64.

The spelling of 27853538869 in words is "twenty-seven billion, eight hundred fifty-three million, five hundred thirty-eight thousand, eight hundred sixty-nine".