12646041896 has 16 divisors (see below), whose sum is σ = 23764144500. Its totient is φ = 6308936704.

The previous prime is 12646041893. The next prime is 12646041899. The reversal of 12646041896 is 69814064621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12646041893) and next prime (12646041899).

It can be written as a sum of positive squares in 2 ways, for example, as 11692096900 + 953944996 = 108130^2 + 30886^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12646041896.

It is not an unprimeable number, because it can be changed into a prime (12646041893) 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, 1756715 + ... + 1763898.

Almost surely, 2^12646041896 is an apocalyptic number.

It is an amenable number.

12646041896 is a deficient number, since it is larger than the sum of its proper divisors (11118102604).

12646041896 is a wasteful number, since it uses less digits than its factorization.

12646041896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521068 (or 3521064 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 12646041896 in words is "twelve billion, six hundred forty-six million, forty-one thousand, eight hundred ninety-six".