27640676744 has 8 divisors (see below), whose sum is σ = 51826268910. Its totient is φ = 13820338368.

The previous prime is 27640676741. The next prime is 27640676753. The reversal of 27640676744 is 44767604672.

It can be written as a sum of positive squares in only one way, i.e., 22335302500 + 5305374244 = 149450^2 + 72838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (27640676741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1727542289 + ... + 1727542304.

Almost surely, 2^27640676744 is an apocalyptic number.

It is an amenable number.

27640676744 is a deficient number, since it is larger than the sum of its proper divisors (24185592166).

27640676744 is a wasteful number, since it uses less digits than its factorization.

27640676744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455084599 (or 3455084595 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 53.

The spelling of 27640676744 in words is "twenty-seven billion, six hundred forty million, six hundred seventy-six thousand, seven hundred forty-four".