11532543445 has 4 divisors (see below), whose sum is σ = 13839052140. Its totient is φ = 9226034752.

The previous prime is 11532543439. The next prime is 11532543467. The reversal of 11532543445 is 54434523511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9076944529 + 2455598916 = 95273^2 + 49554^2 .

It is a cyclic number.

It is not a de Polignac number, because 11532543445 - 2³ = 11532543437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153254340 + ... + 1153254349.

It is an arithmetic number, because the mean of its divisors is an integer number (3459763035).

Almost surely, 2^11532543445 is an apocalyptic number.

It is an amenable number.

11532543445 is a deficient number, since it is larger than the sum of its proper divisors (2306508695).

11532543445 is an equidigital number, since it uses as much as digits as its factorization.

11532543445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306508694.

The product of its digits is 144000, while the sum is 37.

The spelling of 11532543445 in words is "eleven billion, five hundred thirty-two million, five hundred forty-three thousand, four hundred forty-five".