12291580697 has 4 divisors (see below), whose sum is σ = 13408997136. Its totient is φ = 11174164260.

The previous prime is 12291580687. The next prime is 12291580699. The reversal of 12291580697 is 79608519221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12291580697 - 2⁶ = 12291580633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12291580699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558708203 + ... + 558708224.

It is an arithmetic number, because the mean of its divisors is an integer number (3352249284).

Almost surely, 2^12291580697 is an apocalyptic number.

It is an amenable number.

12291580697 is a deficient number, since it is larger than the sum of its proper divisors (1117416439).

12291580697 is a wasteful number, since it uses less digits than its factorization.

12291580697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117416438.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 12291580697 in words is "twelve billion, two hundred ninety-one million, five hundred eighty thousand, six hundred ninety-seven".