721753411112 has 32 divisors (see below), whose sum is σ = 1376104540800. Its totient is φ = 354830112000.

The previous prime is 721753411109. The next prime is 721753411123. The reversal of 721753411112 is 211114357127.

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 7 ways as a sum of consecutive naturals, for example, 2217014 + ... + 2521637.

It is an arithmetic number, because the mean of its divisors is an integer number (43003266900).

Almost surely, 2^721753411112 is an apocalyptic number.

It is an amenable number.

721753411112 is a deficient number, since it is larger than the sum of its proper divisors (654351129688).

721753411112 is a wasteful number, since it uses less digits than its factorization.

721753411112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738977 (or 4738973 counting only the distinct ones).

The product of its digits is 11760, while the sum is 35.

Adding to 721753411112 its reverse (211114357127), we get a palindrome (932867768239).

The spelling of 721753411112 in words is "seven hundred twenty-one billion, seven hundred fifty-three million, four hundred eleven thousand, one hundred twelve".