13961808000 has 1152 divisors, whose sum is σ = 62635996800. Its totient is φ = 3023308800.

The previous prime is 13961807989. The next prime is 13961808001. The reversal of 13961808000 is 80816931.

13961808000 is a `hidden beast` number, since 1 + 39 + 618 + 0 + 8 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13961808001) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 734831991 + ... + 734832009.

It is an arithmetic number, because the mean of its divisors is an integer number (54371525).

Almost surely, 2^13961808000 is an apocalyptic number.

13961808000 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 13961808000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31317998400).

13961808000 is an abundant number, since it is smaller than the sum of its proper divisors (48674188800).

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

13961808000 is an frugal number, since it uses more digits than its factorization.

13961808000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 13961808000 in words is "thirteen billion, nine hundred sixty-one million, eight hundred eight thousand".