12647522272 has 48 divisors (see below), whose sum is σ = 31043924352. Its totient is φ = 4927605120.

The previous prime is 12647522221. The next prime is 12647522323. The reversal of 12647522272 is 27222574621.

It is an interprime number because it is at equal distance from previous prime (12647522221) and next prime (12647522323).

It is a congruent 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, 2563998 + ... + 2568925.

It is an arithmetic number, because the mean of its divisors is an integer number (646748424).

Almost surely, 2^12647522272 is an apocalyptic number.

It is an amenable number.

12647522272 is an abundant number, since it is smaller than the sum of its proper divisors (18396402080).

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

12647522272 is a wasteful number, since it uses less digits than its factorization.

12647522272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132951 (or 5132943 counting only the distinct ones).

The product of its digits is 188160, while the sum is 40.

The spelling of 12647522272 in words is "twelve billion, six hundred forty-seven million, five hundred twenty-two thousand, two hundred seventy-two".