27783871948799 has 16 divisors (see below), whose sum is σ = 27854129651040. Its totient is φ = 27713714958720.

The previous prime is 27783871948769. The next prime is 27783871948813. The reversal of 27783871948799 is 99784917838772.

It is a cyclic number.

It is not a de Polignac number, because 27783871948799 - 2²⁰ = 27783870900223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27783871948769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5209798937 + ... + 5209804269.

It is an arithmetic number, because the mean of its divisors is an integer number (1740883103190).

Almost surely, 2^{27783871948799} is an apocalyptic number.

27783871948799 is a deficient number, since it is larger than the sum of its proper divisors (70257702241).

27783871948799 is a wasteful number, since it uses less digits than its factorization.

27783871948799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12490.

The product of its digits is 21508042752, while the sum is 89.

The spelling of 27783871948799 in words is "twenty-seven trillion, seven hundred eighty-three billion, eight hundred seventy-one million, nine hundred forty-eight thousand, seven hundred ninety-nine".