12347720407 has 8 divisors (see below), whose sum is σ = 14055903360. Its totient is φ = 10737147960.

The previous prime is 12347720389. The next prime is 12347720417. The reversal of 12347720407 is 70402774321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12347720407 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 (12347720417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24402357 + ... + 24402862.

It is an arithmetic number, because the mean of its divisors is an integer number (1756987920).

Almost surely, 2^12347720407 is an apocalyptic number.

12347720407 is a deficient number, since it is larger than the sum of its proper divisors (1708182953).

12347720407 is a wasteful number, since it uses less digits than its factorization.

12347720407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48805253.

The product of its (nonzero) digits is 65856, while the sum is 37.

The spelling of 12347720407 in words is "twelve billion, three hundred forty-seven million, seven hundred twenty thousand, four hundred seven".