27853538845 has 16 divisors (see below), whose sum is σ = 36838726848. Its totient is φ = 20048279040.

The previous prime is 27853538827. The next prime is 27853538863. The reversal of 27853538845 is 54883535872.

It is an interprime number because it is at equal distance from previous prime (27853538827) and next prime (27853538863).

It is a de Polignac number, because none of the positive numbers 2^k-27853538845 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27853538845.

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, 2605119 + ... + 2615788.

It is an arithmetic number, because the mean of its divisors is an integer number (2302420428).

Almost surely, 2^27853538845 is an apocalyptic number.

It is an amenable number.

27853538845 is a deficient number, since it is larger than the sum of its proper divisors (8985188003).

27853538845 is a wasteful number, since it uses less digits than its factorization.

27853538845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221020.

The product of its digits is 32256000, while the sum is 58.

The spelling of 27853538845 in words is "twenty-seven billion, eight hundred fifty-three million, five hundred thirty-eight thousand, eight hundred forty-five".