13271209344 has 128 divisors (see below), whose sum is σ = 39327120000. Its totient is φ = 4405824000.

The previous prime is 13271209313. The next prime is 13271209351. The reversal of 13271209344 is 44390217231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×13271209344² (a number of 21 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 13271209299 and 13271209308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859807 + ... + 875105.

It is an arithmetic number, because the mean of its divisors is an integer number (307243125).

Almost surely, 2^13271209344 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 13271209344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19663560000).

13271209344 is an abundant number, since it is smaller than the sum of its proper divisors (26055910656).

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

13271209344 is a wasteful number, since it uses less digits than its factorization.

13271209344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15573 (or 15555 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 13271209344 in words is "thirteen billion, two hundred seventy-one million, two hundred nine thousand, three hundred forty-four".