27438848712 has 384 divisors, whose sum is σ = 87768489600. Its totient is φ = 7874496000.

The previous prime is 27438848693. The next prime is 27438848777. The reversal of 27438848712 is 21784883472.

27438848712 is a `hidden beast` number, since 2 + 74 + 3 + 88 + 487 + 12 = 666.

It is a super-3 number, since 3×27438848712³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 139283398 + ... + 139283594.

It is an arithmetic number, because the mean of its divisors is an integer number (228563775).

Almost surely, 2^27438848712 is an apocalyptic number.

27438848712 is a gapful number since it is divisible by the number (22) 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 27438848712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43884244800).

27438848712 is an abundant number, since it is smaller than the sum of its proper divisors (60329640888).

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

27438848712 is a wasteful number, since it uses less digits than its factorization.

27438848712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 305 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 54.

The spelling of 27438848712 in words is "twenty-seven billion, four hundred thirty-eight million, eight hundred forty-eight thousand, seven hundred twelve".