10326544643 has 4 divisors (see below), whose sum is σ = 10566696888. Its totient is φ = 10086392400.

The previous prime is 10326544639. The next prime is 10326544667. The reversal of 10326544643 is 34644562301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34644562301 = 163 ⋅212543327.

It is a cyclic number.

It is not a de Polignac number, because 10326544643 - 2² = 10326544639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10326544597 and 10326544606.

It is not an unprimeable number, because it can be changed into a prime (10326544043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120076058 + ... + 120076143.

It is an arithmetic number, because the mean of its divisors is an integer number (2641674222).

Almost surely, 2^10326544643 is an apocalyptic number.

10326544643 is a deficient number, since it is larger than the sum of its proper divisors (240152245).

10326544643 is an equidigital number, since it uses as much as digits as its factorization.

10326544643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240152244.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 10326544643 in words is "ten billion, three hundred twenty-six million, five hundred forty-four thousand, six hundred forty-three".