27863727453 has 24 divisors (see below), whose sum is σ = 42709343040. Its totient is φ = 17467010880.

The previous prime is 27863727433. The next prime is 27863727491. The reversal of 27863727453 is 35472736872.

It is not a de Polignac number, because 27863727453 - 2⁸ = 27863727197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27863727453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27863727433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1128528 + ... + 1152953.

It is an arithmetic number, because the mean of its divisors is an integer number (1779555960).

Almost surely, 2^27863727453 is an apocalyptic number.

27863727453 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

27863727453 is a deficient number, since it is larger than the sum of its proper divisors (14845615587).

27863727453 is a wasteful number, since it uses less digits than its factorization.

27863727453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281569 (or 2281566 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 54.

The spelling of 27863727453 in words is "twenty-seven billion, eight hundred sixty-three million, seven hundred twenty-seven thousand, four hundred fifty-three".