27982689279 has 8 divisors (see below), whose sum is σ = 37317397680. Its totient is φ = 18651553536.

The previous prime is 27982689253. The next prime is 27982689281. The reversal of 27982689279 is 97298628972.

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

It is not a de Polignac number, because 27982689279 - 2⁸ = 27982689023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27982689289) 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, 874834 + ... + 906255.

It is an arithmetic number, because the mean of its divisors is an integer number (4664674710).

Almost surely, 2^27982689279 is an apocalyptic number.

27982689279 is a deficient number, since it is larger than the sum of its proper divisors (9334708401).

27982689279 is a wasteful number, since it uses less digits than its factorization.

27982689279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786329.

The product of its digits is 109734912, while the sum is 69.

The spelling of 27982689279 in words is "twenty-seven billion, nine hundred eighty-two million, six hundred eighty-nine thousand, two hundred seventy-nine".