134445474432 has 160 divisors (see below), whose sum is σ = 400944186720. Its totient is φ = 44721455616.

The previous prime is 134445474391. The next prime is 134445474437. The reversal of 134445474432 is 234474544431.

It is a happy number.

134445474432 is a `hidden beast` number, since 1 + 34 + 4 + 4 + 547 + 44 + 32 = 666.

It is not an unprimeable number, because it can be changed into a prime (134445474437) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5035903 + ... + 5062529.

It is an arithmetic number, because the mean of its divisors is an integer number (2505901167).

Almost surely, 2^134445474432 is an apocalyptic number.

134445474432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134445474432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200472093360).

134445474432 is an abundant number, since it is smaller than the sum of its proper divisors (266498712288).

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

134445474432 is an equidigital number, since it uses as much as digits as its factorization.

134445474432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27140 (or 27119 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 45.

The spelling of 134445474432 in words is "one hundred thirty-four billion, four hundred forty-five million, four hundred seventy-four thousand, four hundred thirty-two".