11528445432 has 64 divisors (see below), whose sum is σ = 32951520000. Its totient is φ = 3292531200.

The previous prime is 11528445407. The next prime is 11528445437. The reversal of 11528445432 is 23454482511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11528445437) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 458319 + ... + 482817.

It is an arithmetic number, because the mean of its divisors is an integer number (514867500).

Almost surely, 2^11528445432 is an apocalyptic number.

11528445432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11528445432 is an abundant number, since it is smaller than the sum of its proper divisors (21423074568).

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

11528445432 is a wasteful number, since it uses less digits than its factorization.

11528445432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27316 (or 27312 counting only the distinct ones).

The product of its digits is 153600, while the sum is 39.

The spelling of 11528445432 in words is "eleven billion, five hundred twenty-eight million, four hundred forty-five thousand, four hundred thirty-two".