12293747208 has 108 divisors (see below), whose sum is σ = 33947562285. Its totient is φ = 4019200128.

The previous prime is 12293747203. The next prime is 12293747237. The reversal of 12293747208 is 80274739221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 12237226884 + 56520324 = 110622^2 + 7518^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78402.

It is a super-2 number, since 2×12293747208² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12293747203) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 68680063 + ... + 68680241.

Almost surely, 2^12293747208 is an apocalyptic number.

12293747208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12293747208

12293747208 is an abundant number, since it is smaller than the sum of its proper divisors (21653815077).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12293747208 is an equidigital number, since it uses as much as digits as its factorization.

12293747208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 12293747208 in words is "twelve billion, two hundred ninety-three million, seven hundred forty-seven thousand, two hundred eight".