13440782988 has 18 divisors (see below), whose sum is σ = 33975312644. Its totient is φ = 4480260984.

The previous prime is 13440782969. The next prime is 13440783011. The reversal of 13440782988 is 88928704431.

It is a happy number.

13440782988 is a `hidden beast` number, since 1 + 344 + 0 + 7 + 8 + 298 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186677506 + ... + 186677577.

Almost surely, 2^13440782988 is an apocalyptic number.

13440782988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13440782988 is an abundant number, since it is smaller than the sum of its proper divisors (20534529656).

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

13440782988 is a wasteful number, since it uses less digits than its factorization.

13440782988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373355093 (or 373355088 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 13440782988 in words is "thirteen billion, four hundred forty million, seven hundred eighty-two thousand, nine hundred eighty-eight".