27240452928 has 840 divisors, whose sum is σ = 97188284160. Its totient is φ = 7504773120.

The previous prime is 27240452887. The next prime is 27240452963. The reversal of 27240452928 is 82925404272.

27240452928 is a `hidden beast` number, since 2 + 72 + 40 + 452 + 92 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 461702563 + ... + 461702621.

Almost surely, 2^27240452928 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 27240452928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48594142080).

27240452928 is an abundant number, since it is smaller than the sum of its proper divisors (69947831232).

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

27240452928 is a wasteful number, since it uses less digits than its factorization.

27240452928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 27240452928 in words is "twenty-seven billion, two hundred forty million, four hundred fifty-two thousand, nine hundred twenty-eight".