12127747524 has 12 divisors (see below), whose sum is σ = 28298077584. Its totient is φ = 4042582504.

The previous prime is 12127747523. The next prime is 12127747531. The reversal of 12127747524 is 42574772121.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12127747523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505322802 + ... + 505322825.

It is an arithmetic number, because the mean of its divisors is an integer number (2358173132).

Almost surely, 2^12127747524 is an apocalyptic number.

It is an amenable number.

12127747524 is an abundant number, since it is smaller than the sum of its proper divisors (16170330060).

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

12127747524 is a wasteful number, since it uses less digits than its factorization.

12127747524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010645634 (or 1010645632 counting only the distinct ones).

The product of its digits is 219520, while the sum is 42.

The spelling of 12127747524 in words is "twelve billion, one hundred twenty-seven million, seven hundred forty-seven thousand, five hundred twenty-four".