11526265406543 has 4 divisors (see below), whose sum is σ = 11557672124640. Its totient is φ = 11494858688448.

The previous prime is 11526265406483. The next prime is 11526265406561. The reversal of 11526265406543 is 34560456262511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11526265406543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11526265406491 and 11526265406500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11526265406573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15703358498 + ... + 15703359231.

It is an arithmetic number, because the mean of its divisors is an integer number (2889418031160).

Almost surely, 2^{11526265406543} is an apocalyptic number.

11526265406543 is a deficient number, since it is larger than the sum of its proper divisors (31406718097).

11526265406543 is an equidigital number, since it uses as much as digits as its factorization.

11526265406543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31406718096.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 11526265406543 in words is "eleven trillion, five hundred twenty-six billion, two hundred sixty-five million, four hundred six thousand, five hundred forty-three".