12536711533 has 4 divisors (see below), whose sum is σ = 12828263008. Its totient is φ = 12245160060.

The previous prime is 12536711459. The next prime is 12536711549. The reversal of 12536711533 is 33511763521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12536711533 - 2¹³ = 12536703341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12536711492 and 12536711501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12536715533) 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, 145775673 + ... + 145775758.

It is an arithmetic number, because the mean of its divisors is an integer number (3207065752).

Almost surely, 2^12536711533 is an apocalyptic number.

It is an amenable number.

12536711533 is a deficient number, since it is larger than the sum of its proper divisors (291551475).

12536711533 is an equidigital number, since it uses as much as digits as its factorization.

12536711533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291551474.

The product of its digits is 56700, while the sum is 37.

It can be divided in two parts, 125367 and 11533, that added together give a square (136900 = 370²).

The spelling of 12536711533 in words is "twelve billion, five hundred thirty-six million, seven hundred eleven thousand, five hundred thirty-three".