13031476368 has 80 divisors (see below), whose sum is σ = 34804189056. Its totient is φ = 4198348800.

The previous prime is 13031476319. The next prime is 13031476399. The reversal of 13031476368 is 86367413031.

It is a happy 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, 243880 + ... + 292472.

Almost surely, 2^13031476368 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 13031476368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17402094528).

13031476368 is an abundant number, since it is smaller than the sum of its proper divisors (21772712688).

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

13031476368 is a wasteful number, since it uses less digits than its factorization.

13031476368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48792 (or 48786 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

Adding to 13031476368 its reverse (86367413031), we get a palindrome (99398889399).

The spelling of 13031476368 in words is "thirteen billion, thirty-one million, four hundred seventy-six thousand, three hundred sixty-eight".