13891513170 has 64 divisors (see below), whose sum is σ = 34080030720. Its totient is φ = 3622281408.

The previous prime is 13891513109. The next prime is 13891513171. The reversal of 13891513170 is 7131519831.

It is not an unprimeable number, because it can be changed into a prime (13891513171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1799539 + ... + 1807241.

It is an arithmetic number, because the mean of its divisors is an integer number (532500480).

Almost surely, 2^13891513170 is an apocalyptic number.

13891513170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13891513170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17040015360).

13891513170 is an abundant number, since it is smaller than the sum of its proper divisors (20188517550).

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

13891513170 is a wasteful number, since it uses less digits than its factorization.

13891513170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9039.

The product of its (nonzero) digits is 22680, while the sum is 39.

The spelling of 13891513170 in words is "thirteen billion, eight hundred ninety-one million, five hundred thirteen thousand, one hundred seventy".