133128528280 has 32 divisors (see below), whose sum is σ = 326770025040. Its totient is φ = 48410373760.

The previous prime is 133128528259. The next prime is 133128528289. The reversal of 133128528280 is 82825821331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133128528289) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 151281979 + ... + 151282858.

Almost surely, 2^133128528280 is an apocalyptic number.

133128528280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133128528280 is an abundant number, since it is smaller than the sum of its proper divisors (193641496760).

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

133128528280 is a wasteful number, since it uses less digits than its factorization.

133128528280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302564859 (or 302564855 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 133128528280 in words is "one hundred thirty-three billion, one hundred twenty-eight million, five hundred twenty-eight thousand, two hundred eighty".