128964006229 has 4 divisors (see below), whose sum is σ = 129271796640. Its totient is φ = 128656215820.

The previous prime is 128964006209. The next prime is 128964006239. The reversal of 128964006229 is 922600469821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 128964006229 - 2⁹ = 128964005717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128964006209) 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, 153894577 + ... + 153895414.

It is an arithmetic number, because the mean of its divisors is an integer number (32317949160).

Almost surely, 2^128964006229 is an apocalyptic number.

It is an amenable number.

128964006229 is a deficient number, since it is larger than the sum of its proper divisors (307790411).

128964006229 is an equidigital number, since it uses as much as digits as its factorization.

128964006229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307790410.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 128964006229 in words is "one hundred twenty-eight billion, nine hundred sixty-four million, six thousand, two hundred twenty-nine".