13273409128 has 128 divisors (see below), whose sum is σ = 30049689600. Its totient is φ = 5377363200.

The previous prime is 13273409111. The next prime is 13273409143. The reversal of 13273409128 is 82190437231.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16166958 + ... + 16167778.

It is an arithmetic number, because the mean of its divisors is an integer number (234763200).

Almost surely, 2^13273409128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13273409128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15024844800).

13273409128 is an abundant number, since it is smaller than the sum of its proper divisors (16776280472).

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

13273409128 is a wasteful number, since it uses less digits than its factorization.

13273409128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 13273409128 in words is "thirteen billion, two hundred seventy-three million, four hundred nine thousand, one hundred twenty-eight".