12309559846 has 4 divisors (see below), whose sum is σ = 18464339772. Its totient is φ = 6154779922.

The previous prime is 12309559841. The next prime is 12309559853. The reversal of 12309559846 is 64895590321.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12309559793 and 12309559802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12309559841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077389960 + ... + 3077389963.

It is an arithmetic number, because the mean of its divisors is an integer number (4616084943).

Almost surely, 2^12309559846 is an apocalyptic number.

12309559846 is a deficient number, since it is larger than the sum of its proper divisors (6154779926).

12309559846 is an equidigital number, since it uses as much as digits as its factorization.

12309559846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6154779925.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 12309559846 in words is "twelve billion, three hundred nine million, five hundred fifty-nine thousand, eight hundred forty-six".