13897785600 has 1080 divisors, whose sum is σ = 57962852640. Its totient is φ = 3264675840.

The previous prime is 13897785529. The next prime is 13897785613. The reversal of 13897785600 is 658779831.

13897785600 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 7 + 78 + 560 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 167443159 + ... + 167443241.

It is an arithmetic number, because the mean of its divisors is an integer number (53669308).

Almost surely, 2^13897785600 is an apocalyptic number.

13897785600 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 13897785600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28981426320).

13897785600 is an abundant number, since it is smaller than the sum of its proper divisors (44065067040).

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

13897785600 is a wasteful number, since it uses less digits than its factorization.

13897785600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 13897785600 in words is "thirteen billion, eight hundred ninety-seven million, seven hundred eighty-five thousand, six hundred".