27752488864 has 24 divisors (see below), whose sum is σ = 54771326820. Its totient is φ = 13842310656.

The previous prime is 27752488861. The next prime is 27752488927. The reversal of 27752488864 is 46888425772.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27007635600 + 744853264 = 164340^2 + 27292^2 .

It is not an unprimeable number, because it can be changed into a prime (27752488861) 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 3 ways as a sum of consecutive naturals, for example, 1047139 + ... + 1073314.

Almost surely, 2^27752488864 is an apocalyptic number.

It is an amenable number.

27752488864 is a deficient number, since it is larger than the sum of its proper divisors (27018837956).

27752488864 is a wasteful number, since it uses less digits than its factorization.

27752488864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120872 (or 2120864 counting only the distinct ones).

The product of its digits is 48168960, while the sum is 61.

The spelling of 27752488864 in words is "twenty-seven billion, seven hundred fifty-two million, four hundred eighty-eight thousand, eight hundred sixty-four".