10721943443833 has 6 divisors (see below), whose sum is σ = 10900594480542. Its totient is φ = 10546173875520.

The previous prime is 10721943443831. The next prime is 10721943443839. The reversal of 10721943443833 is 33834434912701.

It can be written as a sum of positive squares in 3 ways, for example, as 501339050809 + 10220604393024 = 708053^2 + 3196968^2 .

It is not a de Polignac number, because 10721943443833 - 2¹ = 10721943443831 is a prime.

It is a super-4 number, since 4×10721943443833⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10721943443831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1440730416 + ... + 1440737857.

It is an arithmetic number, because the mean of its divisors is an integer number (1816765746757).

Almost surely, 2^{10721943443833} is an apocalyptic number.

It is an amenable number.

10721943443833 is a deficient number, since it is larger than the sum of its proper divisors (178651036709).

10721943443833 is an frugal number, since it uses more digits than its factorization.

10721943443833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881468395 (or 2881468334 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 10721943443833 in words is "ten trillion, seven hundred twenty-one billion, nine hundred forty-three million, four hundred forty-three thousand, eight hundred thirty-three".