27661213134 has 24 divisors (see below), whose sum is σ = 59937735312. Its totient is φ = 9219618720.

The previous prime is 27661213123. The next prime is 27661213141. The reversal of 27661213134 is 43131216672.

27661213134 is a `hidden beast` number, since 2 + 7 + 6 + 612 + 1 + 3 + 1 + 34 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175639 + ... + 293549.

It is an arithmetic number, because the mean of its divisors is an integer number (2497405638).

Almost surely, 2^27661213134 is an apocalyptic number.

27661213134 is an abundant number, since it is smaller than the sum of its proper divisors (32276522178).

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

27661213134 is a wasteful number, since it uses less digits than its factorization.

27661213134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130952 (or 130949 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The spelling of 27661213134 in words is "twenty-seven billion, six hundred sixty-one million, two hundred thirteen thousand, one hundred thirty-four".