13404404131412 has 72 divisors (see below), whose sum is σ = 28030956448320. Its totient is φ = 5589015922560.

The previous prime is 13404404131411. The next prime is 13404404131471. The reversal of 13404404131412 is 21413140440431.

13404404131412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13404404131412² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404404131411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 561743 + ... + 5208105.

It is an arithmetic number, because the mean of its divisors is an integer number (389318839560).

Almost surely, 2^{13404404131412} 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 13404404131412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14015478224160).

13404404131412 is an abundant number, since it is smaller than the sum of its proper divisors (14626552316908).

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

13404404131412 is a wasteful number, since it uses less digits than its factorization.

13404404131412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646781 (or 4646772 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 13404404131412 its reverse (21413140440431), we get a palindrome (34817544571843).

The spelling of 13404404131412 in words is "thirteen trillion, four hundred four billion, four hundred four million, one hundred thirty-one thousand, four hundred twelve".