27664071634 has 8 divisors (see below), whose sum is σ = 41496858288. Its totient is φ = 13831785540.

The previous prime is 27664071619. The next prime is 27664071647. The reversal of 27664071634 is 43617046672.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 80829 + ... + 248719.

It is an arithmetic number, because the mean of its divisors is an integer number (5187107286).

Almost surely, 2^27664071634 is an apocalyptic number.

27664071634 is a deficient number, since it is larger than the sum of its proper divisors (13832786654).

27664071634 is a wasteful number, since it uses less digits than its factorization.

27664071634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250280.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 27664071634 in words is "twenty-seven billion, six hundred sixty-four million, seventy-one thousand, six hundred thirty-four".