27771264412 has 12 divisors (see below), whose sum is σ = 48601583856. Its totient is φ = 13885097600.

The previous prime is 27771264397. The next prime is 27771264419. The reversal of 27771264412 is 21446217772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27771264419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2464 + ... + 235687.

It is an arithmetic number, because the mean of its divisors is an integer number (4050131988).

Almost surely, 2^27771264412 is an apocalyptic number.

It is an amenable number.

27771264412 is a deficient number, since it is larger than the sum of its proper divisors (20830319444).

27771264412 is a wasteful number, since it uses less digits than its factorization.

27771264412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267308 (or 267306 counting only the distinct ones).

The product of its digits is 263424, while the sum is 43.

The spelling of 27771264412 in words is "twenty-seven billion, seven hundred seventy-one million, two hundred sixty-four thousand, four hundred twelve".