12647071530 has 48 divisors (see below), whose sum is σ = 33207978024. Its totient is φ = 3339158400.

The previous prime is 12647071529. The next prime is 12647071553. The reversal of 12647071530 is 3517074621.

It is a happy number.

12647071530 is a `hidden beast` number, since 1 + 2 + 647 + 0 + 7 + 1 + 5 + 3 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12321666009 + 325405521 = 111003^2 + 18039^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 686569 + ... + 704748.

Almost surely, 2^12647071530 is an apocalyptic number.

12647071530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12647071530 is an abundant number, since it is smaller than the sum of its proper divisors (20560906494).

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

12647071530 is a wasteful number, since it uses less digits than its factorization.

12647071530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391431 (or 1391428 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 12647071530 in words is "twelve billion, six hundred forty-seven million, seventy-one thousand, five hundred thirty".