12347945967 has 64 divisors (see below), whose sum is σ = 20265697280. Its totient is φ = 6531186816.

The previous prime is 12347945963. The next prime is 12347945969. The reversal of 12347945967 is 76954974321.

It is a happy number.

It is not a de Polignac number, because 12347945967 - 2² = 12347945963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12347945963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3393273 + ... + 3396909.

It is an arithmetic number, because the mean of its divisors is an integer number (316651520).

Almost surely, 2^12347945967 is an apocalyptic number.

12347945967 is a deficient number, since it is larger than the sum of its proper divisors (7917751313).

12347945967 is a wasteful number, since it uses less digits than its factorization.

12347945967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860.

The product of its digits is 11430720, while the sum is 57.

The spelling of 12347945967 in words is "twelve billion, three hundred forty-seven million, nine hundred forty-five thousand, nine hundred sixty-seven".