128725789598 has 8 divisors (see below), whose sum is σ = 220672782192. Its totient is φ = 55168195536.

The previous prime is 128725789597. The next prime is 128725789639. The reversal of 128725789598 is 895987527821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128725789597) 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, 4597349615 + ... + 4597349642.

It is an arithmetic number, because the mean of its divisors is an integer number (27584097774).

Almost surely, 2^128725789598 is an apocalyptic number.

128725789598 is a deficient number, since it is larger than the sum of its proper divisors (91946992594).

128725789598 is an equidigital number, since it uses as much as digits as its factorization.

128725789598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194699266.

The product of its digits is 203212800, while the sum is 71.

The spelling of 128725789598 in words is "one hundred twenty-eight billion, seven hundred twenty-five million, seven hundred eighty-nine thousand, five hundred ninety-eight".