27712776918 has 16 divisors (see below), whose sum is σ = 55427368896. Its totient is φ = 9237289800.

The previous prime is 27712776893. The next prime is 27712776919. The reversal of 27712776918 is 81967721772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27712776919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200305 + ... + 309107.

It is an arithmetic number, because the mean of its divisors is an integer number (3464210556).

Almost surely, 2^27712776918 is an apocalyptic number.

27712776918 is an abundant number, since it is smaller than the sum of its proper divisors (27714591978).

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

27712776918 is a wasteful number, since it uses less digits than its factorization.

27712776918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151259.

The product of its digits is 4148928, while the sum is 57.

The spelling of 27712776918 in words is "twenty-seven billion, seven hundred twelve million, seven hundred seventy-six thousand, nine hundred eighteen".