12362315545 has 4 divisors (see below), whose sum is σ = 14834778660. Its totient is φ = 9889852432.

The previous prime is 12362315521. The next prime is 12362315549. The reversal of 12362315545 is 54551326321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54551326321 = 121967 ⋅447263.

It can be written as a sum of positive squares in 2 ways, for example, as 8434034569 + 3928280976 = 91837^2 + 62676^2 .

It is a cyclic number.

It is not a de Polignac number, because 12362315545 - 2²⁵ = 12328761113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12362315549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236231550 + ... + 1236231559.

It is an arithmetic number, because the mean of its divisors is an integer number (3708694665).

Almost surely, 2^12362315545 is an apocalyptic number.

It is an amenable number.

12362315545 is a deficient number, since it is larger than the sum of its proper divisors (2472463115).

12362315545 is an equidigital number, since it uses as much as digits as its factorization.

12362315545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472463114.

The product of its digits is 108000, while the sum is 37.

The spelling of 12362315545 in words is "twelve billion, three hundred sixty-two million, three hundred fifteen thousand, five hundred forty-five".