27980682105 has 8 divisors (see below), whose sum is σ = 44769091392. Its totient is φ = 14923030448.

The previous prime is 27980682097. The next prime is 27980682113. The reversal of 27980682105 is 50128608972.

It is an interprime number because it is at equal distance from previous prime (27980682097) and next prime (27980682113).

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 27980682105 - 2³ = 27980682097 is a prime.

It is a super-2 number, since 2×27980682105² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932689389 + ... + 932689418.

It is an arithmetic number, because the mean of its divisors is an integer number (5596136424).

Almost surely, 2^27980682105 is an apocalyptic number.

It is an amenable number.

27980682105 is a deficient number, since it is larger than the sum of its proper divisors (16788409287).

27980682105 is a wasteful number, since it uses less digits than its factorization.

27980682105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865378815.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 27980682105 in words is "twenty-seven billion, nine hundred eighty million, six hundred eighty-two thousand, one hundred five".