12263251729 has 4 divisors (see below), whose sum is σ = 12263592484. Its totient is φ = 12262910976.

The previous prime is 12263251723. The next prime is 12263251739. The reversal of 12263251729 is 92715236221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9712496704 + 2550755025 = 98552^2 + 50505^2 .

It is a cyclic number.

It is not a de Polignac number, because 12263251729 - 2⁵ = 12263251697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12263251691 and 12263251700.

It is not an unprimeable number, because it can be changed into a prime (12263251723) 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, 109032 + ... + 190825.

It is an arithmetic number, because the mean of its divisors is an integer number (3065898121).

Almost surely, 2^12263251729 is an apocalyptic number.

It is an amenable number.

12263251729 is a deficient number, since it is larger than the sum of its proper divisors (340755).

12263251729 is an equidigital number, since it uses as much as digits as its factorization.

12263251729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340754.

The product of its digits is 90720, while the sum is 40.

The spelling of 12263251729 in words is "twelve billion, two hundred sixty-three million, two hundred fifty-one thousand, seven hundred twenty-nine".