13449965821140 has 24 divisors (see below), whose sum is σ = 37659904299360. Its totient is φ = 3586657552288.

The previous prime is 13449965821093. The next prime is 13449965821177. The reversal of 13449965821140 is 4112856994431.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112083048450 + ... + 112083048569.

It is an arithmetic number, because the mean of its divisors is an integer number (1569162679140).

Almost surely, 2^{13449965821140} is an apocalyptic number.

13449965821140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13449965821140 is an abundant number, since it is smaller than the sum of its proper divisors (24209938478220).

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

13449965821140 is a wasteful number, since it uses less digits than its factorization.

13449965821140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224166097031 (or 224166097029 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 13449965821140 in words is "thirteen trillion, four hundred forty-nine billion, nine hundred sixty-five million, eight hundred twenty-one thousand, one hundred forty".