11721740034 has 24 divisors (see below), whose sum is σ = 24742292400. Its totient is φ = 3701601432.

The previous prime is 11721740029. The next prime is 11721740087. The reversal of 11721740034 is 43004712711.

11721740034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11721739983 and 11721740010.

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 11 ways as a sum of consecutive naturals, for example, 2703684 + ... + 2708015.

It is an arithmetic number, because the mean of its divisors is an integer number (1030928850).

Almost surely, 2^11721740034 is an apocalyptic number.

11721740034 is an abundant number, since it is smaller than the sum of its proper divisors (13020552366).

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

11721740034 is a wasteful number, since it uses less digits than its factorization.

11721740034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411742 (or 5411723 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The spelling of 11721740034 in words is "eleven billion, seven hundred twenty-one million, seven hundred forty thousand, thirty-four".