27911255512 has 32 divisors (see below), whose sum is σ = 62957721600. Its totient is φ = 11332389024.

The previous prime is 27911255507. The next prime is 27911255513. The reversal of 27911255512 is 21555211972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27911255513) 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 7 ways as a sum of consecutive naturals, for example, 13115128 + ... + 13117255.

It is an arithmetic number, because the mean of its divisors is an integer number (1967428800).

Almost surely, 2^27911255512 is an apocalyptic number.

It is an amenable number.

27911255512 is an abundant number, since it is smaller than the sum of its proper divisors (35046466088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27911255512 is a wasteful number, since it uses less digits than its factorization.

27911255512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26232415 (or 26232411 counting only the distinct ones).

The product of its digits is 63000, while the sum is 40.

The spelling of 27911255512 in words is "twenty-seven billion, nine hundred eleven million, two hundred fifty-five thousand, five hundred twelve".