13857859008 has 168 divisors, whose sum is σ = 46361981952. Its totient is φ = 3875092992.

The previous prime is 13857858967. The next prime is 13857859033. The reversal of 13857859008 is 80095875831.

13857859008 is a `hidden beast` number, since 13 + 8 + 578 + 59 + 0 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152941 + ... + 226067.

Almost surely, 2^13857859008 is an apocalyptic number.

13857859008 is a gapful number since it is divisible by the number (18) 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 13857859008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23180990976).

13857859008 is an abundant number, since it is smaller than the sum of its proper divisors (32504122944).

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

13857859008 is a wasteful number, since it uses less digits than its factorization.

13857859008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73199 (or 73186 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 13857859008 in words is "thirteen billion, eight hundred fifty-seven million, eight hundred fifty-nine thousand, eight".