27726764636 has 12 divisors (see below), whose sum is σ = 49246045128. Its totient is φ = 13656466032.

The previous prime is 27726764627. The next prime is 27726764647. The reversal of 27726764636 is 63646762772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51728771 + ... + 51729306.

It is an arithmetic number, because the mean of its divisors is an integer number (4103837094).

Almost surely, 2^27726764636 is an apocalyptic number.

It is an amenable number.

27726764636 is a deficient number, since it is larger than the sum of its proper divisors (21519280492).

27726764636 is a wasteful number, since it uses less digits than its factorization.

27726764636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103458148 (or 103458146 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 56.

The spelling of 27726764636 in words is "twenty-seven billion, seven hundred twenty-six million, seven hundred sixty-four thousand, six hundred thirty-six".