13438956198 has 8 divisors (see below), whose sum is σ = 26877912408. Its totient is φ = 4479652064.

The previous prime is 13438956197. The next prime is 13438956199. The reversal of 13438956198 is 89165983431.

It is an interprime number because it is at equal distance from previous prime (13438956197) and next prime (13438956199).

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

13438956198 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438956191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119913011 + ... + 1119913022.

It is an arithmetic number, because the mean of its divisors is an integer number (3359739051).

Almost surely, 2^13438956198 is an apocalyptic number.

13438956198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13438956198 is a wasteful number, since it uses less digits than its factorization.

13438956198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239826038.

The product of its digits is 5598720, while the sum is 57.

The spelling of 13438956198 in words is "thirteen billion, four hundred thirty-eight million, nine hundred fifty-six thousand, one hundred ninety-eight".