13449965821141 has 4 divisors (see below), whose sum is σ = 13449994691392. Its totient is φ = 13449936950892.

The previous prime is 13449965821093. The next prime is 13449965821177. The reversal of 13449965821141 is 14112856994431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13449965821141 - 2⁷ = 13449965821013 is a prime.

It is a super-2 number, since 2×13449965821141² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13449965822141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13724655 + ... + 14671948.

It is an arithmetic number, because the mean of its divisors is an integer number (3362498672848).

Almost surely, 2^{13449965821141} is an apocalyptic number.

It is an amenable number.

13449965821141 is a deficient number, since it is larger than the sum of its proper divisors (28870251).

13449965821141 is an equidigital number, since it uses as much as digits as its factorization.

13449965821141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28870250.

The product of its digits is 7464960, while the sum is 58.

The spelling of 13449965821141 in words is "thirteen trillion, four hundred forty-nine billion, nine hundred sixty-five million, eight hundred twenty-one thousand, one hundred forty-one".