12727901124 has 27 divisors (see below), whose sum is σ = 32175016783. Its totient is φ = 4242408072.

The previous prime is 12727901117. The next prime is 12727901171. The reversal of 12727901124 is 42110972721.

The square root of 12727901124 is 112818.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 667507 + ... + 686309.

Almost surely, 2^12727901124 is an apocalyptic number.

12727901124 is the 112818-th square number.

It is an amenable number.

12727901124 is an abundant number, since it is smaller than the sum of its proper divisors (19447115659).

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

12727901124 is an frugal number, since it uses more digits than its factorization.

12727901124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37616 (or 18808 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

Multiplying 12727901124 by its sum of digits (36), we get a square (458204440464 = 676908²).

12727901124 divided by its sum of digits (36) gives a square (353552809 = 18803²).

The spelling of 12727901124 in words is "twelve billion, seven hundred twenty-seven million, nine hundred one thousand, one hundred twenty-four".