27879314842 has 8 divisors (see below), whose sum is σ = 41969944116. Its totient is φ = 13889333472.

The previous prime is 27879314839. The next prime is 27879314843. The reversal of 27879314842 is 24841397872.

It is a Cunningham number, because it is equal to 166971²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 27879314841 + 1 = 166971^2 + 1^2 .

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

It is a super-2 number, since 2×27879314842² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27879314843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25161283 + ... + 25162390.

Almost surely, 2^27879314842 is an apocalyptic number.

27879314842 is a deficient number, since it is larger than the sum of its proper divisors (14090629274).

27879314842 is a wasteful number, since it uses less digits than its factorization.

27879314842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50323952.

The product of its digits is 5419008, while the sum is 55.

The spelling of 27879314842 in words is "twenty-seven billion, eight hundred seventy-nine million, three hundred fourteen thousand, eight hundred forty-two".