12259587697 has 4 divisors (see below), whose sum is σ = 14010957376. Its totient is φ = 10508218020.

The previous prime is 12259587647. The next prime is 12259587731. The reversal of 12259587697 is 79678595221.

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 a de Polignac number, because none of the positive numbers 2^k-12259587697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12259587647) 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, 875684829 + ... + 875684842.

It is an arithmetic number, because the mean of its divisors is an integer number (3502739344).

Almost surely, 2^12259587697 is an apocalyptic number.

It is an amenable number.

12259587697 is a deficient number, since it is larger than the sum of its proper divisors (1751369679).

12259587697 is an equidigital number, since it uses as much as digits as its factorization.

12259587697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751369678.

The product of its digits is 19051200, while the sum is 61.

The spelling of 12259587697 in words is "twelve billion, two hundred fifty-nine million, five hundred eighty-seven thousand, six hundred ninety-seven".