13981943808000 has 2160 divisors, whose sum is σ = 59588633364624. Its totient is φ = 3144469708800.

The previous prime is 13981943807977. The next prime is 13981943808013. The reversal of 13981943808000 is 80834918931.

13981943808000 is a `hidden beast` number, since 13 + 98 + 1 + 94 + 380 + 80 + 0 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 8412041723904 + 5569902084096 = 2900352^2 + 2360064^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 102057983932 + ... + 102057984068.

Almost surely, 2^{13981943808000} is an apocalyptic number.

13981943808000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13981943808000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29794316682312).

13981943808000 is an abundant number, since it is smaller than the sum of its proper divisors (45606689556624).

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

13981943808000 is a wasteful number, since it uses less digits than its factorization.

13981943808000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 13981943808000 in words is "thirteen trillion, nine hundred eighty-one billion, nine hundred forty-three million, eight hundred eight thousand".