128808469524 has 144 divisors (see below), whose sum is σ = 354513223680. Its totient is φ = 36288907200.

The previous prime is 128808469507. The next prime is 128808469607. The reversal of 128808469524 is 425964808821.

128808469524 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×128808469524² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50492049 + ... + 50494599.

Almost surely, 2^128808469524 is an apocalyptic number.

128808469524 is a gapful number since it is divisible by the number (14) 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 128808469524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177256611840).

128808469524 is an abundant number, since it is smaller than the sum of its proper divisors (225704754156).

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

128808469524 is a wasteful number, since it uses less digits than its factorization.

128808469524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738 (or 3729 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 57.

The spelling of 128808469524 in words is "one hundred twenty-eight billion, eight hundred eight million, four hundred sixty-nine thousand, five hundred twenty-four".