27639132973 has 8 divisors (see below), whose sum is σ = 28624769280. Its totient is φ = 26670062160.

The previous prime is 27639132953. The next prime is 27639132977. The reversal of 27639132973 is 37923193672.

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

It is a cyclic number.

It is not a de Polignac number, because 27639132973 - 2⁹ = 27639132461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27639132973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27639132977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4137978 + ... + 4144651.

It is an arithmetic number, because the mean of its divisors is an integer number (3578096160).

Almost surely, 2^27639132973 is an apocalyptic number.

It is an amenable number.

27639132973 is a deficient number, since it is larger than the sum of its proper divisors (985636307).

27639132973 is an equidigital number, since it uses as much as digits as its factorization.

27639132973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8282747.

The product of its digits is 2571912, while the sum is 52.

The spelling of 27639132973 in words is "twenty-seven billion, six hundred thirty-nine million, one hundred thirty-two thousand, nine hundred seventy-three".