9721049568343 has 4 divisors (see below), whose sum is σ = 9763873575480. Its totient is φ = 9678225561208.

The previous prime is 9721049568337. The next prime is 9721049568421. The reversal of 9721049568343 is 3438659401279.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9721049568343 - 2¹³ = 9721049560151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9721049568443) 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, 21412003228 + ... + 21412003681.

It is an arithmetic number, because the mean of its divisors is an integer number (2440968393870).

It is a 1-persistent number, because it is pandigital, but 2⋅9721049568343 = 19442099136686 is not.

Almost surely, 2^{9721049568343} is an apocalyptic number.

9721049568343 is a deficient number, since it is larger than the sum of its proper divisors (42824007137).

9721049568343 is a wasteful number, since it uses less digits than its factorization.

9721049568343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42824007136.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 9721049568343 in words is "nine trillion, seven hundred twenty-one billion, forty-nine million, five hundred sixty-eight thousand, three hundred forty-three".