4105721050 has 12 divisors (see below), whose sum is σ = 7636641246. Its totient is φ = 1642288400.

The previous prime is 4105721041. The next prime is 4105721071. The reversal of 4105721050 is 501275014.

It can be written as a sum of positive squares in 3 ways, for example, as 2259386089 + 1846334961 = 47533^2 + 42969^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 41057161 + ... + 41057260.

Almost surely, 2^4105721050 is an apocalyptic number.

4105721050 is a deficient number, since it is larger than the sum of its proper divisors (3530920196).

4105721050 is a wasteful number, since it uses less digits than its factorization.

4105721050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82114433 (or 82114428 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 4105721050 is about 64075.9006959715. The cubic root of 4105721050 is about 1601.2647616915.

Adding to 4105721050 its reverse (501275014), we get a palindrome (4606996064).

The spelling of 4105721050 in words is "four billion, one hundred five million, seven hundred twenty-one thousand, fifty".