27717697772 has 6 divisors (see below), whose sum is σ = 48505971108. Its totient is φ = 13858848884.

The previous prime is 27717697771. The next prime is 27717697837. The reversal of 27717697772 is 27779671772.

It is not an unprimeable number, because it can be changed into a prime (27717697771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3464712218 + ... + 3464712225.

It is an arithmetic number, because the mean of its divisors is an integer number (8084328518).

Almost surely, 2^27717697772 is an apocalyptic number.

It is an amenable number.

27717697772 is a deficient number, since it is larger than the sum of its proper divisors (20788273336).

27717697772 is a wasteful number, since it uses less digits than its factorization.

27717697772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929424447 (or 6929424445 counting only the distinct ones).

The product of its digits is 25412184, while the sum is 62.

The spelling of 27717697772 in words is "twenty-seven billion, seven hundred seventeen million, six hundred ninety-seven thousand, seven hundred seventy-two".