12291580747 has 4 divisors (see below), whose sum is σ = 12372982096. Its totient is φ = 12210179400.

The previous prime is 12291580739. The next prime is 12291580783. The reversal of 12291580747 is 74708519221.

12291580747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74708519221 = 7 ⋅10672645603.

It is a cyclic number.

It is not a de Polignac number, because 12291580747 - 2³ = 12291580739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12291580697 and 12291580706.

It is not an unprimeable number, because it can be changed into a prime (12291580727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40700448 + ... + 40700749.

It is an arithmetic number, because the mean of its divisors is an integer number (3093245524).

Almost surely, 2^12291580747 is an apocalyptic number.

12291580747 is a deficient number, since it is larger than the sum of its proper divisors (81401349).

12291580747 is an equidigital number, since it uses as much as digits as its factorization.

12291580747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81401348.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 12291580747 in words is "twelve billion, two hundred ninety-one million, five hundred eighty thousand, seven hundred forty-seven".