27752488623 has 8 divisors (see below), whose sum is σ = 41114798000. Its totient is φ = 18501659064.

The previous prime is 27752488619. The next prime is 27752488649. The reversal of 27752488623 is 32688425772.

27752488623 is a `hidden beast` number, since 2 + 7 + 7 + 5 + 2 + 4 + 8 + 8 + 623 = 666.

It is not a de Polignac number, because 27752488623 - 2² = 27752488619 is a prime.

It is a super-2 number, since 2×27752488623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27752488623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27752488613) 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, 513934948 + ... + 513935001.

It is an arithmetic number, because the mean of its divisors is an integer number (5139349750).

Almost surely, 2^27752488623 is an apocalyptic number.

27752488623 is a deficient number, since it is larger than the sum of its proper divisors (13362309377).

27752488623 is a wasteful number, since it uses less digits than its factorization.

27752488623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027869958 (or 1027869952 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 27752488623 in words is "twenty-seven billion, seven hundred fifty-two million, four hundred eighty-eight thousand, six hundred twenty-three".