11547453072 has 80 divisors (see below), whose sum is σ = 31436807360. Its totient is φ = 3642402816.

The previous prime is 11547453013. The next prime is 11547453079. The reversal of 11547453072 is 27035474511.

It is a self number, because there is not a number n which added to its sum of digits gives 11547453072.

It is not an unprimeable number, because it can be changed into a prime (11547453079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847788 + ... + 861300.

It is an arithmetic number, because the mean of its divisors is an integer number (392960092).

Almost surely, 2^11547453072 is an apocalyptic number.

11547453072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11547453072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15718403680).

11547453072 is an abundant number, since it is smaller than the sum of its proper divisors (19889354288).

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

11547453072 is a wasteful number, since it uses less digits than its factorization.

11547453072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14480 (or 14474 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 11547453072 in words is "eleven billion, five hundred forty-seven million, four hundred fifty-three thousand, seventy-two".