27642377466544 has 40 divisors (see below), whose sum is σ = 54566147386800. Its totient is φ = 13563026220288.

The previous prime is 27642377466497. The next prime is 27642377466551. The reversal of 27642377466544 is 44566477324672.

It is a self number, because there is not a number n which added to its sum of digits gives 27642377466544.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69651267 + ... + 70047010.

It is an arithmetic number, because the mean of its divisors is an integer number (1364153684670).

Almost surely, 2^{27642377466544} is an apocalyptic number.

It is an amenable number.

27642377466544 is a deficient number, since it is larger than the sum of its proper divisors (26923769920256).

27642377466544 is a wasteful number, since it uses less digits than its factorization.

27642377466544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139698517 (or 139698511 counting only the distinct ones).

The product of its digits is 1137991680, while the sum is 67.

The spelling of 27642377466544 in words is "twenty-seven trillion, six hundred forty-two billion, three hundred seventy-seven million, four hundred sixty-six thousand, five hundred forty-four".