13977344168 has 16 divisors (see below), whose sum is σ = 27346978080. Its totient is φ = 6684816688.

The previous prime is 13977344149. The next prime is 13977344207. The reversal of 13977344168 is 86144377931.

It is a happy number.

It is a super-2 number, since 2×13977344168² (a number of 21 digits) contains 22 as substring.

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, 37981730 + ... + 37982097.

It is an arithmetic number, because the mean of its divisors is an integer number (1709186130).

Almost surely, 2^13977344168 is an apocalyptic number.

It is an amenable number.

13977344168 is a deficient number, since it is larger than the sum of its proper divisors (13369633912).

13977344168 is a wasteful number, since it uses less digits than its factorization.

13977344168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75963856 (or 75963852 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 53.

The spelling of 13977344168 in words is "thirteen billion, nine hundred seventy-seven million, three hundred forty-four thousand, one hundred sixty-eight".