128270299008 has 64 divisors (see below), whose sum is σ = 340821918720. Its totient is φ = 42743723520.

The previous prime is 128270298991. The next prime is 128270299037. The reversal of 128270299008 is 800992072821.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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, 1252891 + ... + 1351397.

It is an arithmetic number, because the mean of its divisors is an integer number (5325342480).

Almost surely, 2^128270299008 is an apocalyptic number.

It is an amenable number.

128270299008 is an abundant number, since it is smaller than the sum of its proper divisors (212551619712).

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

128270299008 is an equidigital number, since it uses as much as digits as its factorization.

128270299008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101915 (or 101903 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 128270299008 in words is "one hundred twenty-eight billion, two hundred seventy million, two hundred ninety-nine thousand, eight".