12592336618 has 4 divisors (see below), whose sum is σ = 18888504930. Its totient is φ = 6296168308.

The previous prime is 12592336613. The next prime is 12592336619. The reversal of 12592336618 is 81663329521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81663329521 = 811 ⋅100694611.

It can be written as a sum of positive squares in only one way, i.e., 7592856769 + 4999479849 = 87137^2 + 70707^2 .

It is not an unprimeable number, because it can be changed into a prime (12592336613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3148084153 + ... + 3148084156.

Almost surely, 2^12592336618 is an apocalyptic number.

12592336618 is a deficient number, since it is larger than the sum of its proper divisors (6296168312).

12592336618 is an equidigital number, since it uses as much as digits as its factorization.

12592336618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6296168311.

The product of its digits is 466560, while the sum is 46.

The spelling of 12592336618 in words is "twelve billion, five hundred ninety-two million, three hundred thirty-six thousand, six hundred eighteen".