128734500032 has 14 divisors (see below), whose sum is σ = 255457523628. Its totient is φ = 64367249984.

The previous prime is 128734500023. The next prime is 128734500049. The reversal of 128734500032 is 230005437821.

It is a junction number, because it is equal to n+sod(n) for n = 128734499965 and 128734500001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005738218 + ... + 1005738345.

Almost surely, 2^128734500032 is an apocalyptic number.

It is an amenable number.

128734500032 is a deficient number, since it is larger than the sum of its proper divisors (126723023596).

128734500032 is an equidigital number, since it uses as much as digits as its factorization.

128734500032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011476575 (or 2011476565 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 128734500032 its reverse (230005437821), we get a palindrome (358739937853).

The spelling of 128734500032 in words is "one hundred twenty-eight billion, seven hundred thirty-four million, five hundred thousand, thirty-two".