128350275040 has 96 divisors (see below), whose sum is σ = 326752846560. Its totient is φ = 47361828864.

The previous prime is 128350274959. The next prime is 128350275041. The reversal of 128350275040 is 40572053821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128350275041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3536667 + ... + 3572773.

It is an arithmetic number, because the mean of its divisors is an integer number (3403675485).

Almost surely, 2^128350275040 is an apocalyptic number.

128350275040 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 128350275040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163376423280).

128350275040 is an abundant number, since it is smaller than the sum of its proper divisors (198402571520).

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

128350275040 is a wasteful number, since it uses less digits than its factorization.

128350275040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37844 (or 37836 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 128350275040 in words is "one hundred twenty-eight billion, three hundred fifty million, two hundred seventy-five thousand, forty".