128175372448 has 24 divisors (see below), whose sum is σ = 257714315712. Its totient is φ = 62724117696.

The previous prime is 128175372443. The next prime is 128175372461. The reversal of 128175372448 is 844273571821.

It is a happy number.

It is a super-2 number, since 2×128175372448² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128175372395 and 128175372404.

It is not an unprimeable number, because it can be changed into a prime (128175372443) 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, 42609990 + ... + 42612997.

It is an arithmetic number, because the mean of its divisors is an integer number (10738096488).

Almost surely, 2^128175372448 is an apocalyptic number.

It is an amenable number.

128175372448 is an abundant number, since it is smaller than the sum of its proper divisors (129538943264).

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

128175372448 is an equidigital number, since it uses as much as digits as its factorization.

128175372448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85223044 (or 85223036 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 52.

The spelling of 128175372448 in words is "one hundred twenty-eight billion, one hundred seventy-five million, three hundred seventy-two thousand, four hundred forty-eight".