12346723505 has 8 divisors (see below), whose sum is σ = 14846494272. Its totient is φ = 9857094768.

The previous prime is 12346723471. The next prime is 12346723517. The reversal of 12346723505 is 50532764321.

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

It is a cyclic number.

It is not a de Polignac number, because 12346723505 - 2²² = 12342529201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2532827 + ... + 2537696.

It is an arithmetic number, because the mean of its divisors is an integer number (1855811784).

Almost surely, 2^12346723505 is an apocalyptic number.

It is an amenable number.

12346723505 is a deficient number, since it is larger than the sum of its proper divisors (2499770767).

12346723505 is an equidigital number, since it uses as much as digits as its factorization.

12346723505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071015.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 12346723505 in words is "twelve billion, three hundred forty-six million, seven hundred twenty-three thousand, five hundred five".