12920826529 has 8 divisors (see below), whose sum is σ = 13915623680. Its totient is φ = 11926156176.

The previous prime is 12920826521. The next prime is 12920826553. The reversal of 12920826529 is 92562802921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12920826529 - 2³ = 12920826521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12920826521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352342 + ... + 387280.

It is an arithmetic number, because the mean of its divisors is an integer number (1739452960).

Almost surely, 2^12920826529 is an apocalyptic number.

It is an amenable number.

12920826529 is a deficient number, since it is larger than the sum of its proper divisors (994797151).

12920826529 is a wasteful number, since it uses less digits than its factorization.

12920826529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63399.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 12920826529 in words is "twelve billion, nine hundred twenty million, eight hundred twenty-six thousand, five hundred twenty-nine".