27438055708 has 48 divisors (see below), whose sum is σ = 57082334400. Its totient is φ = 11290890240.

The previous prime is 27438055663. The next prime is 27438055747. The reversal of 27438055708 is 80755083472.

It is a super-2 number, since 2×27438055708² (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 53628 + ... + 240316.

It is an arithmetic number, because the mean of its divisors is an integer number (1189215300).

Almost surely, 2^27438055708 is an apocalyptic number.

27438055708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27438055708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28541167200).

27438055708 is an abundant number, since it is smaller than the sum of its proper divisors (29644278692).

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

27438055708 is a wasteful number, since it uses less digits than its factorization.

27438055708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186910 (or 186908 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 27438055708 in words is "twenty-seven billion, four hundred thirty-eight million, fifty-five thousand, seven hundred eight".