13138271998 has 8 divisors (see below), whose sum is σ = 20386973880. Its totient is φ = 6342614040.

The previous prime is 13138271989. The next prime is 13138272011. The reversal of 13138271998 is 89917283131.

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

It is a super-2 number, since 2×13138271998² (a number of 21 digits) contains 22 as substring.

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, 113260908 + ... + 113261023.

It is an arithmetic number, because the mean of its divisors is an integer number (2548371735).

Almost surely, 2^13138271998 is an apocalyptic number.

13138271998 is a deficient number, since it is larger than the sum of its proper divisors (7248701882).

13138271998 is a wasteful number, since it uses less digits than its factorization.

13138271998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226521962.

The product of its digits is 653184, while the sum is 52.

The spelling of 13138271998 in words is "thirteen billion, one hundred thirty-eight million, two hundred seventy-one thousand, nine hundred ninety-eight".