1643089849633 has 32 divisors (see below), whose sum is σ = 1746946460160. Its totient is φ = 1543063737600.

The previous prime is 1643089849631. The next prime is 1643089849663. The reversal of 1643089849633 is 3369489803461.

It is not a de Polignac number, because 1643089849633 - 2¹ = 1643089849631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1643089849631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73187416 + ... + 73209862.

It is an arithmetic number, because the mean of its divisors is an integer number (54592076880).

Almost surely, 2^{1643089849633} is an apocalyptic number.

It is an amenable number.

1643089849633 is a deficient number, since it is larger than the sum of its proper divisors (103856610527).

1643089849633 is a wasteful number, since it uses less digits than its factorization.

1643089849633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23017.

The product of its (nonzero) digits is 80621568, while the sum is 64.

The spelling of 1643089849633 in words is "one trillion, six hundred forty-three billion, eighty-nine million, eight hundred forty-nine thousand, six hundred thirty-three".