13843297221649 has 8 divisors (see below), whose sum is σ = 15835254647040. Its totient is φ = 11854925680416.

The previous prime is 13843297221599. The next prime is 13843297221703. The reversal of 13843297221649 is 94612279234831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13843297221649 - 2²³ = 13843288833041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13843297221049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896462764 + ... + 896478205.

It is an arithmetic number, because the mean of its divisors is an integer number (1979406830880).

Almost surely, 2^{13843297221649} is an apocalyptic number.

It is an amenable number.

13843297221649 is a deficient number, since it is larger than the sum of its proper divisors (1991957425391).

13843297221649 is a wasteful number, since it uses less digits than its factorization.

13843297221649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792942079.

The product of its digits is 31352832, while the sum is 61.

The spelling of 13843297221649 in words is "thirteen trillion, eight hundred forty-three billion, two hundred ninety-seven million, two hundred twenty-one thousand, six hundred forty-nine".