13440748888872 has 48 divisors (see below), whose sum is σ = 36762444381780. Its totient is φ = 4435890720000.

The previous prime is 13440748888841. The next prime is 13440748888873. The reversal of 13440748888872 is 27888884704431.

13440748888872 is a `hidden beast` number, since 1 + 34 + 40 + 7 + 488 + 8 + 8 + 8 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11211956677476 + 2228792211396 = 3348426^2 + 1492914^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 13440748888872.

It is not an unprimeable number, because it can be changed into a prime (13440748888873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 924136629 + ... + 924151172.

Almost surely, 2^{13440748888872} is an apocalyptic number.

13440748888872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13440748888872 is an abundant number, since it is smaller than the sum of its proper divisors (23321695492908).

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

13440748888872 is a wasteful number, since it uses less digits than its factorization.

13440748888872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848287914 (or 1848287907 counting only the distinct ones).

The product of its (nonzero) digits is 616562688, while the sum is 72.

The spelling of 13440748888872 in words is "thirteen trillion, four hundred forty billion, seven hundred forty-eight million, eight hundred eighty-eight thousand, eight hundred seventy-two".