128634200589 has 8 divisors (see below), whose sum is σ = 171879533280. Its totient is φ = 85572500816.

The previous prime is 128634200579. The next prime is 128634200663. The reversal of 128634200589 is 985002436821.

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 128634200589 - 2¹³ = 128634192397 is a prime.

It is a super-2 number, since 2×128634200589² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128634200579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45906594 + ... + 45909395.

It is an arithmetic number, because the mean of its divisors is an integer number (21484941660).

Almost surely, 2^128634200589 is an apocalyptic number.

It is an amenable number.

128634200589 is a deficient number, since it is larger than the sum of its proper divisors (43245332691).

128634200589 is an equidigital number, since it uses as much as digits as its factorization.

128634200589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91816459.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 128634200589 in words is "one hundred twenty-eight billion, six hundred thirty-four million, two hundred thousand, five hundred eighty-nine".