128908535952 has 480 divisors, whose sum is σ = 419326232832. Its totient is φ = 33901314048.

The previous prime is 128908535893. The next prime is 128908535981. The reversal of 128908535952 is 259535809821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128908535892 and 128908535901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 465373638 + ... + 465373914.

Almost surely, 2^128908535952 is an apocalyptic number.

128908535952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128908535952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209663116416).

128908535952 is an abundant number, since it is smaller than the sum of its proper divisors (290417696880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128908535952 is a wasteful number, since it uses less digits than its factorization.

128908535952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 57.

The spelling of 128908535952 in words is "one hundred twenty-eight billion, nine hundred eight million, five hundred thirty-five thousand, nine hundred fifty-two".