12618805337 has 2 divisors, whose sum is σ = 12618805338. Its totient is φ = 12618805336.

The previous prime is 12618805291. The next prime is 12618805343. The reversal of 12618805337 is 73350881621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9561710656 + 3057094681 = 97784^2 + 55291^2 .

It is a cyclic number.

It is not a de Polignac number, because 12618805337 - 2¹⁶ = 12618739801 is a prime.

It is not a weakly prime, because it can be changed into another prime (12618801337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309402668 + 6309402669.

It is an arithmetic number, because the mean of its divisors is an integer number (6309402669).

Almost surely, 2^12618805337 is an apocalyptic number.

It is an amenable number.

12618805337 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618805337 is an equidigital number, since it uses as much as digits as its factorization.

12618805337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 12618805337 in words is "twelve billion, six hundred eighteen million, eight hundred five thousand, three hundred thirty-seven".