13969481723136 has 144 divisors (see below), whose sum is σ = 43740228067200. Its totient is φ = 4382582464512.

The previous prime is 13969481723123. The next prime is 13969481723159. The reversal of 13969481723136 is 63132718496931.

It is a happy number.

13969481723136 is a `hidden beast` number, since 1 + 3 + 96 + 9 + 481 + 7 + 2 + 31 + 36 = 666.

13969481723136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×13969481723136² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59325076 + ... + 59560083.

It is an arithmetic number, because the mean of its divisors is an integer number (303751583800).

Almost surely, 2^{13969481723136} is an apocalyptic number.

13969481723136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13969481723136 is an abundant number, since it is smaller than the sum of its proper divisors (29770746344064).

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

13969481723136 is a wasteful number, since it uses less digits than its factorization.

13969481723136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118885201 (or 118885181 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 63.

The spelling of 13969481723136 in words is "thirteen trillion, nine hundred sixty-nine billion, four hundred eighty-one million, seven hundred twenty-three thousand, one hundred thirty-six".