13281894108 has 48 divisors (see below), whose sum is σ = 39353762560. Its totient is φ = 3794826672.

The previous prime is 13281894103. The next prime is 13281894127. The reversal of 13281894108 is 80149818231.

It is a super-2 number, since 2×13281894108² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13281894103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8783566 + ... + 8785077.

Almost surely, 2^13281894108 is an apocalyptic number.

13281894108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13281894108 is an abundant number, since it is smaller than the sum of its proper divisors (26071868452).

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

13281894108 is a wasteful number, since it uses less digits than its factorization.

13281894108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17568663 (or 17568655 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 13281894108 in words is "thirteen billion, two hundred eighty-one million, eight hundred ninety-four thousand, one hundred eight".