12365536537 has 8 divisors (see below), whose sum is σ = 12447239112. Its totient is φ = 12284025600.

The previous prime is 12365536523. The next prime is 12365536553. The reversal of 12365536537 is 73563556321.

It can be written as a sum of positive squares in 4 ways, for example, as 10024815376 + 2340721161 = 100124^2 + 48381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12365536537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12365536507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82737 + ... + 177697.

It is an arithmetic number, because the mean of its divisors is an integer number (1555904889).

Almost surely, 2^12365536537 is an apocalyptic number.

It is an amenable number.

12365536537 is a deficient number, since it is larger than the sum of its proper divisors (81702575).

12365536537 is an equidigital number, since it uses as much as digits as its factorization.

12365536537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95819.

The product of its digits is 1701000, while the sum is 46.

The spelling of 12365536537 in words is "twelve billion, three hundred sixty-five million, five hundred thirty-six thousand, five hundred thirty-seven".