27257653232 has 80 divisors (see below), whose sum is σ = 56798820000. Its totient is φ = 12632435712.

The previous prime is 27257653223. The next prime is 27257653237. The reversal of 27257653232 is 23235675272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27257653237) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6265394 + ... + 6269742.

It is an arithmetic number, because the mean of its divisors is an integer number (709985250).

Almost surely, 2^27257653232 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 27257653232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28399410000).

27257653232 is an abundant number, since it is smaller than the sum of its proper divisors (29541166768).

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

27257653232 is a wasteful number, since it uses less digits than its factorization.

27257653232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818 (or 4812 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 44.

The spelling of 27257653232 in words is "twenty-seven billion, two hundred fifty-seven million, six hundred fifty-three thousand, two hundred thirty-two".