13921514344 has 16 divisors (see below), whose sum is σ = 26112193920. Its totient is φ = 6958262640.

The previous prime is 13921514329. The next prime is 13921514363. The reversal of 13921514344 is 44341512931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287992 + ... + 332839.

It is an arithmetic number, because the mean of its divisors is an integer number (1632012120).

Almost surely, 2^13921514344 is an apocalyptic number.

It is an amenable number.

13921514344 is a deficient number, since it is larger than the sum of its proper divisors (12190679576).

13921514344 is a wasteful number, since it uses less digits than its factorization.

13921514344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623640 (or 623636 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The spelling of 13921514344 in words is "thirteen billion, nine hundred twenty-one million, five hundred fourteen thousand, three hundred forty-four".