6445989741833 has 4 divisors (see below), whose sum is σ = 6446008842000. Its totient is φ = 6445970641668.

The previous prime is 6445989741809. The next prime is 6445989741859. The reversal of 6445989741833 is 3381479895446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6445989741833 - 2⁶ = 6445989741769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6445989741133) 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 3 ways as a sum of consecutive naturals, for example, 9034583 + ... + 9721916.

It is an arithmetic number, because the mean of its divisors is an integer number (1611502210500).

Almost surely, 2^{6445989741833} is an apocalyptic number.

It is an amenable number.

6445989741833 is a deficient number, since it is larger than the sum of its proper divisors (19100167).

6445989741833 is a wasteful number, since it uses less digits than its factorization.

6445989741833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19100166.

The product of its digits is 627056640, while the sum is 71.

The spelling of 6445989741833 in words is "six trillion, four hundred forty-five billion, nine hundred eighty-nine million, seven hundred forty-one thousand, eight hundred thirty-three".