10643189243903 has 4 divisors (see below), whose sum is σ = 10643208529368. Its totient is φ = 10643169958440.

The previous prime is 10643189243881. The next prime is 10643189243909. The reversal of 10643189243903 is 30934298134601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10643189243903 is a prime.

It is a super-3 number, since 3×10643189243903³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643189243909) 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, 8789768 + ... + 9927053.

It is an arithmetic number, because the mean of its divisors is an integer number (2660802132342).

Almost surely, 2^{10643189243903} is an apocalyptic number.

10643189243903 is a deficient number, since it is larger than the sum of its proper divisors (19285465).

10643189243903 is an equidigital number, since it uses as much as digits as its factorization.

10643189243903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19285464.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 10643189243903 in words is "ten trillion, six hundred forty-three billion, one hundred eighty-nine million, two hundred forty-three thousand, nine hundred three".