13578789828 has 48 divisors (see below), whose sum is σ = 33114372480. Its totient is φ = 4325121024.

The previous prime is 13578789823. The next prime is 13578789863. The reversal of 13578789828 is 82898787531.

It is not an unprimeable number, because it can be changed into a prime (13578789823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167376 + ... + 234887.

It is an arithmetic number, because the mean of its divisors is an integer number (689882760).

Almost surely, 2^13578789828 is an apocalyptic number.

It is an amenable number.

13578789828 is an abundant number, since it is smaller than the sum of its proper divisors (19535582652).

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

13578789828 is a wasteful number, since it uses less digits than its factorization.

13578789828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402396 (or 402394 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 66.

The spelling of 13578789828 in words is "thirteen billion, five hundred seventy-eight million, seven hundred eighty-nine thousand, eight hundred twenty-eight".