12727560537 has 10 divisors (see below), whose sum is σ = 19012775738. Its totient is φ = 8485040304.

The previous prime is 12727560509. The next prime is 12727560541. The reversal of 12727560537 is 73506572721.

12727560537 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 7 + 5 + 605 + 37 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6647303961 + 6080256576 = 81531^2 + 77976^2 .

It is not a de Polignac number, because 12727560537 - 2⁷ = 12727560409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12727560492 and 12727560501.

It is not an unprimeable number, because it can be changed into a prime (12727560557) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 78565108 + ... + 78565269.

Almost surely, 2^12727560537 is an apocalyptic number.

It is an amenable number.

12727560537 is a deficient number, since it is larger than the sum of its proper divisors (6285215201).

12727560537 is an equidigital number, since it uses as much as digits as its factorization.

12727560537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157130389 (or 157130380 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 12727560537 in words is "twelve billion, seven hundred twenty-seven million, five hundred sixty thousand, five hundred thirty-seven".