13403349504 has 160 divisors (see below), whose sum is σ = 39943812480. Its totient is φ = 4437504000.

The previous prime is 13403349473. The next prime is 13403349649. The reversal of 13403349504 is 40594330431.

13403349504 is a `hidden beast` number, since 134 + 0 + 33 + 495 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2084214 + ... + 2090634.

It is an arithmetic number, because the mean of its divisors is an integer number (249648828).

Almost surely, 2^13403349504 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 13403349504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19971906240).

13403349504 is an abundant number, since it is smaller than the sum of its proper divisors (26540462976).

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

13403349504 is an equidigital number, since it uses as much as digits as its factorization.

13403349504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599 (or 6577 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 13403349504 its reverse (40594330431), we get a palindrome (53997679935).

The spelling of 13403349504 in words is "thirteen billion, four hundred three million, three hundred forty-nine thousand, five hundred four".