11534543265 has 64 divisors (see below), whose sum is σ = 22386931200. Its totient is φ = 4950650880.

The previous prime is 11534543239. The next prime is 11534543269. The reversal of 11534543265 is 56234543511.

It is a happy number.

It is not a de Polignac number, because 11534543265 - 2²⁵ = 11500988833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11534543269) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 743811 + ... + 759159.

It is an arithmetic number, because the mean of its divisors is an integer number (349795800).

Almost surely, 2^11534543265 is an apocalyptic number.

11534543265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11534543265 is a deficient number, since it is larger than the sum of its proper divisors (10852387935).

11534543265 is a wasteful number, since it uses less digits than its factorization.

11534543265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15802.

The product of its digits is 216000, while the sum is 39.

The spelling of 11534543265 in words is "eleven billion, five hundred thirty-four million, five hundred forty-three thousand, two hundred sixty-five".