11528243745 has 16 divisors (see below), whose sum is σ = 19530201600. Its totient is φ = 5786726144.

The previous prime is 11528243723. The next prime is 11528243777. The reversal of 11528243745 is 54734282511.

It is a cyclic number.

It is not a de Polignac number, because 11528243745 - 2¹⁰ = 11528242721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11528243697 and 11528243706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22604145 + ... + 22604654.

It is an arithmetic number, because the mean of its divisors is an integer number (1220637600).

Almost surely, 2^11528243745 is an apocalyptic number.

11528243745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11528243745 is a deficient number, since it is larger than the sum of its proper divisors (8001957855).

11528243745 is a wasteful number, since it uses less digits than its factorization.

11528243745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45208824.

The product of its digits is 268800, while the sum is 42.

The spelling of 11528243745 in words is "eleven billion, five hundred twenty-eight million, two hundred forty-three thousand, seven hundred forty-five".