13284386981940 has 48 divisors (see below), whose sum is σ = 37898100229248. Its totient is φ = 3475663511424.

The previous prime is 13284386981917. The next prime is 13284386981953. The reversal of 13284386981940 is 4918968348231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088736912 + ... + 2088743271.

It is an arithmetic number, because the mean of its divisors is an integer number (789543754776).

Almost surely, 2^{13284386981940} is an apocalyptic number.

13284386981940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13284386981940 is an abundant number, since it is smaller than the sum of its proper divisors (24613713247308).

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

13284386981940 is a wasteful number, since it uses less digits than its factorization.

13284386981940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177480248 (or 4177480246 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 66.

The spelling of 13284386981940 in words is "thirteen trillion, two hundred eighty-four billion, three hundred eighty-six million, nine hundred eighty-one thousand, nine hundred forty".