11439720572 has 24 divisors (see below), whose sum is σ = 23044049280. Its totient is φ = 4867464240.

The previous prime is 11439720517. The next prime is 11439720577. The reversal of 11439720572 is 27502793411.

It is a happy number.

11439720572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11439720577) 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 7 ways as a sum of consecutive naturals, for example, 1465754 + ... + 1473537.

It is an arithmetic number, because the mean of its divisors is an integer number (960168720).

Almost surely, 2^11439720572 is an apocalyptic number.

It is an amenable number.

11439720572 is an abundant number, since it is smaller than the sum of its proper divisors (11604328708).

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

11439720572 is a wasteful number, since it uses less digits than its factorization.

11439720572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939441 (or 2939439 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 11439720572 in words is "eleven billion, four hundred thirty-nine million, seven hundred twenty thousand, five hundred seventy-two".