105644434773 has 8 divisors (see below), whose sum is σ = 141756439648. Its totient is φ = 69981026544.

The previous prime is 105644434759. The next prime is 105644434793. The reversal of 105644434773 is 377434446501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105644434773 - 2²⁰ = 105643386197 is a prime.

It is a super-2 number, since 2×105644434773² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105644434793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112148611 + ... + 112149552.

It is an arithmetic number, because the mean of its divisors is an integer number (17719554956).

Almost surely, 2^105644434773 is an apocalyptic number.

It is an amenable number.

105644434773 is a deficient number, since it is larger than the sum of its proper divisors (36112004875).

105644434773 is a wasteful number, since it uses less digits than its factorization.

105644434773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224298323.

The product of its (nonzero) digits is 3386880, while the sum is 48.

The spelling of 105644434773 in words is "one hundred five billion, six hundred forty-four million, four hundred thirty-four thousand, seven hundred seventy-three".