12505451632346 has 8 divisors (see below), whose sum is σ = 18760596945204. Its totient is φ = 6251919317280.

The previous prime is 12505451632337. The next prime is 12505451632357. The reversal of 12505451632346 is 64323615450521.

It can be written as a sum of positive squares in 2 ways, for example, as 12194657647225 + 310793985121 = 3492085^2 + 557489^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12505451632346.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 403230065 + ... + 403261076.

Almost surely, 2^{12505451632346} is an apocalyptic number.

12505451632346 is a deficient number, since it is larger than the sum of its proper divisors (6255145312858).

12505451632346 is an equidigital number, since it uses as much as digits as its factorization.

12505451632346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806498896.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 12505451632346 in words is "twelve trillion, five hundred five billion, four hundred fifty-one million, six hundred thirty-two thousand, three hundred forty-six".