128855964050 has 48 divisors (see below), whose sum is σ = 262545633504. Its totient is φ = 46662240000.

The previous prime is 128855964049. The next prime is 128855964053. The reversal of 128855964050 is 50469558821.

It is a junction number, because it is equal to n+sod(n) for n = 128855963983 and 128855964001.

It is not an unprimeable number, because it can be changed into a prime (128855964053) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 353516 + ... + 618615.

It is an arithmetic number, because the mean of its divisors is an integer number (5469700698).

Almost surely, 2^128855964050 is an apocalyptic number.

128855964050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128855964050 is an abundant number, since it is smaller than the sum of its proper divisors (133689669454).

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

128855964050 is a wasteful number, since it uses less digits than its factorization.

128855964050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972395 (or 972390 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 53.

The spelling of 128855964050 in words is "one hundred twenty-eight billion, eight hundred fifty-five million, nine hundred sixty-four thousand, fifty".