12293523447 has 4 divisors (see below), whose sum is σ = 16391364600. Its totient is φ = 8195682296.

The previous prime is 12293523443. The next prime is 12293523479. The reversal of 12293523447 is 74432539221.

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

It is a cyclic number.

It is not a de Polignac number, because 12293523447 - 2² = 12293523443 is a prime.

It is a super-2 number, since 2×12293523447² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12293523399 and 12293523408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12293523443) 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, 2048920572 + ... + 2048920577.

It is an arithmetic number, because the mean of its divisors is an integer number (4097841150).

Almost surely, 2^12293523447 is an apocalyptic number.

12293523447 is a deficient number, since it is larger than the sum of its proper divisors (4097841153).

12293523447 is an equidigital number, since it uses as much as digits as its factorization.

12293523447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097841152.

The product of its digits is 362880, while the sum is 42.

The spelling of 12293523447 in words is "twelve billion, two hundred ninety-three million, five hundred twenty-three thousand, four hundred forty-seven".