12894716640529 has 16 divisors (see below), whose sum is σ = 13122583338240. Its totient is φ = 12667163863680.

The previous prime is 12894716640527. The next prime is 12894716640569. The reversal of 12894716640529 is 92504661749821.

It is a cyclic number.

It is not a de Polignac number, because 12894716640529 - 2¹ = 12894716640527 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12894716640521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531049869 + ... + 531074149.

It is an arithmetic number, because the mean of its divisors is an integer number (820161458640).

Almost surely, 2^{12894716640529} is an apocalyptic number.

It is an amenable number.

12894716640529 is a deficient number, since it is larger than the sum of its proper divisors (227866697711).

12894716640529 is a wasteful number, since it uses less digits than its factorization.

12894716640529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30360.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 12894716640529 in words is "twelve trillion, eight hundred ninety-four billion, seven hundred sixteen million, six hundred forty thousand, five hundred twenty-nine".