12724470472 has 32 divisors (see below), whose sum is σ = 27386867520. Its totient is φ = 5429315520.

The previous prime is 12724470461. The next prime is 12724470509. The reversal of 12724470472 is 27407442721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487779 + ... + 513202.

It is an arithmetic number, because the mean of its divisors is an integer number (855839610).

Almost surely, 2^12724470472 is an apocalyptic number.

It is an amenable number.

12724470472 is an abundant number, since it is smaller than the sum of its proper divisors (14662397048).

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

12724470472 is a wasteful number, since it uses less digits than its factorization.

12724470472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001221 (or 1001217 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 40.

It can be divided in two parts, 1272 and 4470472, that added together give a palindrome (4471744).

The spelling of 12724470472 in words is "twelve billion, seven hundred twenty-four million, four hundred seventy thousand, four hundred seventy-two".