105072720488 has 16 divisors (see below), whose sum is σ = 208600254180. Its totient is φ = 49445986048.

The previous prime is 105072720469. The next prime is 105072720497. The reversal of 105072720488 is 884027270501.

It can be written as a sum of positive squares in 2 ways, for example, as 100881193924 + 4191526564 = 317618^2 + 64742^2 .

It is a super-2 number, since 2×105072720488² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386296631 + ... + 386296902.

Almost surely, 2^105072720488 is an apocalyptic number.

It is an amenable number.

105072720488 is a deficient number, since it is larger than the sum of its proper divisors (103527533692).

105072720488 is a wasteful number, since it uses less digits than its factorization.

105072720488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772593556 (or 772593552 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 44.

Adding to 105072720488 its reverse (884027270501), we get a palindrome (989099990989).

The spelling of 105072720488 in words is "one hundred five billion, seventy-two million, seven hundred twenty thousand, four hundred eighty-eight".