11567257912 has 256 divisors, whose sum is σ = 29168640000. Its totient is φ = 4267468800.

The previous prime is 11567257909. The next prime is 11567257913. The reversal of 11567257912 is 21975276511.

11567257912 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 (11567257913) 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, 27475462 + ... + 27475882.

It is an arithmetic number, because the mean of its divisors is an integer number (113940000).

Almost surely, 2^11567257912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11567257912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14584320000).

11567257912 is an abundant number, since it is smaller than the sum of its proper divisors (17601382088).

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

11567257912 is a wasteful number, since it uses less digits than its factorization.

11567257912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 497 counting only the distinct ones).

The product of its digits is 264600, while the sum is 46.

The spelling of 11567257912 in words is "eleven billion, five hundred sixty-seven million, two hundred fifty-seven thousand, nine hundred twelve".