27747551248 has 40 divisors (see below), whose sum is σ = 55820177280. Its totient is φ = 13345879680.

The previous prime is 27747551243. The next prime is 27747551267. The reversal of 27747551248 is 84215574772.

It is a happy number.

It is a super-3 number, since 3×27747551248³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 27747551195 and 27747551204.

It is not an unprimeable number, because it can be changed into a prime (27747551243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15411 + ... + 236077.

It is an arithmetic number, because the mean of its divisors is an integer number (1395504432).

Almost surely, 2^27747551248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27747551248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27910088640).

27747551248 is an abundant number, since it is smaller than the sum of its proper divisors (28072626032).

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

27747551248 is a wasteful number, since it uses less digits than its factorization.

27747551248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220975 (or 220969 counting only the distinct ones).

The product of its digits is 4390400, while the sum is 52.

The spelling of 27747551248 in words is "twenty-seven billion, seven hundred forty-seven million, five hundred fifty-one thousand, two hundred forty-eight".