27472727440 has 20 divisors (see below), whose sum is σ = 63874091484. Its totient is φ = 10989090944.

The previous prime is 27472727371. The next prime is 27472727473. The reversal of 27472727440 is 4472727472.

It can be written as a sum of positive squares in 2 ways, for example, as 6666395904 + 20806331536 = 81648^2 + 144244^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 171704467 + ... + 171704626.

Almost surely, 2^27472727440 is an apocalyptic number.

27472727440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27472727440 is an abundant number, since it is smaller than the sum of its proper divisors (36401364044).

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

27472727440 is a wasteful number, since it uses less digits than its factorization.

27472727440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343409106 (or 343409100 counting only the distinct ones).

The product of its (nonzero) digits is 1229312, while the sum is 46.

The spelling of 27472727440 in words is "twenty-seven billion, four hundred seventy-two million, seven hundred twenty-seven thousand, four hundred forty".