12547825967 has 4 divisors (see below), whose sum is σ = 13208237880. Its totient is φ = 11887414056.

The previous prime is 12547825963. The next prime is 12547825981. The reversal of 12547825967 is 76952874521.

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 12547825967 - 2² = 12547825963 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 (12547825963) 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, 330205928 + ... + 330205965.

It is an arithmetic number, because the mean of its divisors is an integer number (3302059470).

Almost surely, 2^12547825967 is an apocalyptic number.

12547825967 is a deficient number, since it is larger than the sum of its proper divisors (660411913).

12547825967 is an equidigital number, since it uses as much as digits as its factorization.

12547825967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660411912.

The product of its digits is 8467200, while the sum is 56.

The spelling of 12547825967 in words is "twelve billion, five hundred forty-seven million, eight hundred twenty-five thousand, nine hundred sixty-seven".