21374326116443 has 8 divisors (see below), whose sum is σ = 22064009379840. Its totient is φ = 20684654657640.

The previous prime is 21374326116431. The next prime is 21374326116457. The reversal of 21374326116443 is 34461162347312.

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

It is not a de Polignac number, because 21374326116443 - 2¹⁶ = 21374326050907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21374326116343) 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, 804518 + ... + 6587556.

It is an arithmetic number, because the mean of its divisors is an integer number (2758001172480).

Almost surely, 2^{21374326116443} is an apocalyptic number.

21374326116443 is a deficient number, since it is larger than the sum of its proper divisors (689683263397).

21374326116443 is a wasteful number, since it uses less digits than its factorization.

21374326116443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902297.

The product of its digits is 1741824, while the sum is 47.

The spelling of 21374326116443 in words is "twenty-one trillion, three hundred seventy-four billion, three hundred twenty-six million, one hundred sixteen thousand, four hundred forty-three".