27118086870 has 128 divisors (see below), whose sum is σ = 78475392000. Its totient is φ = 5858721792.

The previous prime is 27118086839. The next prime is 27118086883. The reversal of 27118086870 is 7868081172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1783942 + ... + 1799078.

It is an arithmetic number, because the mean of its divisors is an integer number (613089000).

Almost surely, 2^27118086870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27118086870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39237696000).

27118086870 is an abundant number, since it is smaller than the sum of its proper divisors (51357305130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27118086870 is a wasteful number, since it uses less digits than its factorization.

27118086870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15622.

The product of its (nonzero) digits is 301056, while the sum is 48.

The spelling of 27118086870 in words is "twenty-seven billion, one hundred eighteen million, eighty-six thousand, eight hundred seventy".