13438161982 has 8 divisors (see below), whose sum is σ = 23036849136. Its totient is φ = 5759212272.

The previous prime is 13438161949. The next prime is 13438162019. The reversal of 13438161982 is 28916183431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479934343 + ... + 479934370.

It is an arithmetic number, because the mean of its divisors is an integer number (2879606142).

Almost surely, 2^13438161982 is an apocalyptic number.

13438161982 is a deficient number, since it is larger than the sum of its proper divisors (9598687154).

13438161982 is an equidigital number, since it uses as much as digits as its factorization.

13438161982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959868722.

The product of its digits is 248832, while the sum is 46.

The spelling of 13438161982 in words is "thirteen billion, four hundred thirty-eight million, one hundred sixty-one thousand, nine hundred eighty-two".