12647894796580 has 12 divisors (see below), whose sum is σ = 26560579072860. Its totient is φ = 5059157918624.

The previous prime is 12647894796577. The next prime is 12647894796587. The reversal of 12647894796580 is 8569749874621.

It can be written as a sum of positive squares in 2 ways, for example, as 8203733294656 + 4444161501924 = 2864216^2 + 2108118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12647894796497 and 12647894796506.

It is not an unprimeable number, because it can be changed into a prime (12647894796587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316197369895 + ... + 316197369934.

It is an arithmetic number, because the mean of its divisors is an integer number (2213381589405).

Almost surely, 2^{12647894796580} is an apocalyptic number.

12647894796580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12647894796580 is an abundant number, since it is smaller than the sum of its proper divisors (13912684276280).

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

12647894796580 is a wasteful number, since it uses less digits than its factorization.

12647894796580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632394739838 (or 632394739836 counting only the distinct ones).

The product of its (nonzero) digits is 1463132160, while the sum is 76.

The spelling of 12647894796580 in words is "twelve trillion, six hundred forty-seven billion, eight hundred ninety-four million, seven hundred ninety-six thousand, five hundred eighty".