27240031960 has 64 divisors (see below), whose sum is σ = 62982501120. Its totient is φ = 10595473920.

The previous prime is 27240031937. The next prime is 27240031969. The reversal of 27240031960 is 6913004272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27240031969) 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, 3282937 + ... + 3291223.

It is an arithmetic number, because the mean of its divisors is an integer number (984101580).

Almost surely, 2^27240031960 is an apocalyptic number.

27240031960 is a gapful number since it is divisible by the number (20) 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 27240031960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31491250560).

27240031960 is an abundant number, since it is smaller than the sum of its proper divisors (35742469160).

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

27240031960 is a wasteful number, since it uses less digits than its factorization.

27240031960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556 (or 10552 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 27240031960 in words is "twenty-seven billion, two hundred forty million, thirty-one thousand, nine hundred sixty".