27357275484 has 144 divisors (see below), whose sum is σ = 86876165376. Its totient is φ = 7051449600.

The previous prime is 27357275453. The next prime is 27357275489. The reversal of 27357275484 is 48457275372.

It is a happy number.

27357275484 is a `hidden beast` number, since 2 + 73 + 5 + 7 + 27 + 548 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 27357275484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27357275489) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 325464 + ... + 400800.

It is an arithmetic number, because the mean of its divisors is an integer number (603306704).

Almost surely, 2^27357275484 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 27357275484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43438082688).

27357275484 is an abundant number, since it is smaller than the sum of its proper divisors (59518889892).

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

27357275484 is a wasteful number, since it uses less digits than its factorization.

27357275484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75496 (or 75491 counting only the distinct ones).

The product of its digits is 13171200, while the sum is 54.

The spelling of 27357275484 in words is "twenty-seven billion, three hundred fifty-seven million, two hundred seventy-five thousand, four hundred eighty-four".