27750583481 has 8 divisors (see below), whose sum is σ = 28167074760. Its totient is φ = 27337036032.

The previous prime is 27750583463. The next prime is 27750583559. The reversal of 27750583481 is 18438505772.

It can be written as a sum of positive squares in 4 ways, for example, as 7811731456 + 19938852025 = 88384^2 + 141205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27750583481 - 2¹⁸ = 27750321337 is a prime.

It is a super-2 number, since 2×27750583481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27750583451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716960 + ... + 754673.

It is an arithmetic number, because the mean of its divisors is an integer number (3520884345).

Almost surely, 2^27750583481 is an apocalyptic number.

It is an amenable number.

27750583481 is a deficient number, since it is larger than the sum of its proper divisors (416491279).

27750583481 is a wasteful number, since it uses less digits than its factorization.

27750583481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471915.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 27750583481 in words is "twenty-seven billion, seven hundred fifty million, five hundred eighty-three thousand, four hundred eighty-one".