12491247229 has 8 divisors (see below), whose sum is σ = 12896582400. Its totient is φ = 12086061600.

The previous prime is 12491247221. The next prime is 12491247253. The reversal of 12491247229 is 92274219421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12491247229 - 2³ = 12491247221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12491247221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146874 + ... + 215764.

It is an arithmetic number, because the mean of its divisors is an integer number (1612072800).

Almost surely, 2^12491247229 is an apocalyptic number.

It is an amenable number.

12491247229 is a deficient number, since it is larger than the sum of its proper divisors (405335171).

12491247229 is an equidigital number, since it uses as much as digits as its factorization.

12491247229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74771.

The product of its digits is 145152, while the sum is 43.

The spelling of 12491247229 in words is "twelve billion, four hundred ninety-one million, two hundred forty-seven thousand, two hundred twenty-nine".