27761576912 has 40 divisors (see below), whose sum is σ = 58341156552. Its totient is φ = 12745625600.

The previous prime is 27761576911. The next prime is 27761576917. The reversal of 27761576912 is 21967516772.

It can be written as a sum of positive squares in 4 ways, for example, as 932447296 + 26829129616 = 30536^2 + 163796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27761576911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233539 + ... + 1255842.

Almost surely, 2^27761576912 is an apocalyptic number.

It is an amenable number.

27761576912 is an abundant number, since it is smaller than the sum of its proper divisors (30579579640).

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

27761576912 is a wasteful number, since it uses less digits than its factorization.

27761576912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489447 (or 2489441 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 53.

The spelling of 27761576912 in words is "twenty-seven billion, seven hundred sixty-one million, five hundred seventy-six thousand, nine hundred twelve".