128903767860 has 576 divisors, whose sum is σ = 462089650176. Its totient is φ = 26649907200.

The previous prime is 128903767813. The next prime is 128903767871. The reversal of 128903767860 is 68767309821.

It is a self number, because there is not a number n which added to its sum of digits gives 128903767860.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 419881827 + ... + 419882133.

It is an arithmetic number, because the mean of its divisors is an integer number (802238976).

Almost surely, 2^128903767860 is an apocalyptic number.

128903767860 is a gapful number since it is divisible by the number (10) 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 128903767860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231044825088).

128903767860 is an abundant number, since it is smaller than the sum of its proper divisors (333185882316).

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

128903767860 is a wasteful number, since it uses less digits than its factorization.

128903767860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 128903767860 in words is "one hundred twenty-eight billion, nine hundred three million, seven hundred sixty-seven thousand, eight hundred sixty".