13897409639224 has 16 divisors (see below), whose sum is σ = 26612061012000. Its totient is φ = 6800860036032.

The previous prime is 13897409639209. The next prime is 13897409639297. The reversal of 13897409639224 is 42293690479831.

13897409639224 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 2×13897409639224² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13897409639224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18480597549 + ... + 18480598300.

It is an arithmetic number, because the mean of its divisors is an integer number (1663253813250).

Almost surely, 2^{13897409639224} is an apocalyptic number.

It is an amenable number.

13897409639224 is a deficient number, since it is larger than the sum of its proper divisors (12714651372776).

13897409639224 is a wasteful number, since it uses less digits than its factorization.

13897409639224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36961195902 (or 36961195898 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 67.

The spelling of 13897409639224 in words is "thirteen trillion, eight hundred ninety-seven billion, four hundred nine million, six hundred thirty-nine thousand, two hundred twenty-four".