27802781116 has 24 divisors (see below), whose sum is σ = 53118943920. Its totient is φ = 12627888000.

The previous prime is 27802781107. The next prime is 27802781119. The reversal of 27802781116 is 61118720872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27802781119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185601 + ... + 300088.

It is an arithmetic number, because the mean of its divisors is an integer number (2213289330).

Almost surely, 2^27802781116 is an apocalyptic number.

It is an amenable number.

27802781116 is a deficient number, since it is larger than the sum of its proper divisors (25316162804).

27802781116 is a wasteful number, since it uses less digits than its factorization.

27802781116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487005 (or 487003 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 43.

The spelling of 27802781116 in words is "twenty-seven billion, eight hundred two million, seven hundred eighty-one thousand, one hundred sixteen".