12647836562 has 16 divisors (see below), whose sum is σ = 20554899552. Its totient is φ = 5813505600.

The previous prime is 12647836543. The next prime is 12647836567. The reversal of 12647836562 is 26563874621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12647836562.

It is not an unprimeable number, because it can be changed into a prime (12647836567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4324064 + ... + 4326987.

It is an arithmetic number, because the mean of its divisors is an integer number (1284681222).

Almost surely, 2^12647836562 is an apocalyptic number.

12647836562 is a deficient number, since it is larger than the sum of its proper divisors (7907062990).

12647836562 is a wasteful number, since it uses less digits than its factorization.

12647836562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8651113.

The product of its digits is 2903040, while the sum is 50.

The spelling of 12647836562 in words is "twelve billion, six hundred forty-seven million, eight hundred thirty-six thousand, five hundred sixty-two".