128252999080 has 16 divisors (see below), whose sum is σ = 288569248020. Its totient is φ = 51301199616.

The previous prime is 128252999051. The next prime is 128252999081. The reversal of 128252999080 is 80999252821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 125065493316 + 3187505764 = 353646^2 + 56458^2 .

It is not an unprimeable number, because it can be changed into a prime (128252999081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603162449 + ... + 1603162528.

Almost surely, 2^128252999080 is an apocalyptic number.

128252999080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128252999080 is an abundant number, since it is smaller than the sum of its proper divisors (160316248940).

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

128252999080 is a wasteful number, since it uses less digits than its factorization.

128252999080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206324988 (or 3206324984 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 55.

The spelling of 128252999080 in words is "one hundred twenty-eight billion, two hundred fifty-two million, nine hundred ninety-nine thousand, eighty".