10721719386 has 128 divisors (see below), whose sum is σ = 27904665600. Its totient is φ = 3025723248.

The previous prime is 10721719381. The next prime is 10721719387. The reversal of 10721719386 is 68391712701.

10721719386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10721719386² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10721719381) 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 63 ways as a sum of consecutive naturals, for example, 2539185 + ... + 2543403.

It is an arithmetic number, because the mean of its divisors is an integer number (218005200).

Almost surely, 2^10721719386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10721719386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13952332800).

10721719386 is an abundant number, since it is smaller than the sum of its proper divisors (17182946214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10721719386 is an frugal number, since it uses more digits than its factorization.

10721719386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 10721719386 in words is "ten billion, seven hundred twenty-one million, seven hundred nineteen thousand, three hundred eighty-six".