13212409408 has 112 divisors (see below), whose sum is σ = 29485669248. Its totient is φ = 5821952000.

The previous prime is 13212409403. The next prime is 13212409417. The reversal of 13212409408 is 80490421231.

It is not an unprimeable number, because it can be changed into a prime (13212409403) 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, 4818918 + ... + 4821658.

It is an arithmetic number, because the mean of its divisors is an integer number (263264904).

Almost surely, 2^13212409408 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 13212409408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14742834624).

13212409408 is an abundant number, since it is smaller than the sum of its proper divisors (16273259840).

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

13212409408 is a wasteful number, since it uses less digits than its factorization.

13212409408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972 (or 2962 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 13212409408 in words is "thirteen billion, two hundred twelve million, four hundred nine thousand, four hundred eight".