12511346005 has 32 divisors (see below), whose sum is σ = 16190000640. Its totient is φ = 9251081280.

The previous prime is 12511345999. The next prime is 12511346077. The reversal of 12511346005 is 50064311521.

It is not a de Polignac number, because 12511346005 - 2⁹ = 12511345493 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 6220450 + ... + 6222460.

It is an arithmetic number, because the mean of its divisors is an integer number (505937520).

Almost surely, 2^12511346005 is an apocalyptic number.

It is an amenable number.

12511346005 is a deficient number, since it is larger than the sum of its proper divisors (3678654635).

12511346005 is a wasteful number, since it uses less digits than its factorization.

12511346005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3601.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 12511346005 its reverse (50064311521), we get a palindrome (62575657526).

The spelling of 12511346005 in words is "twelve billion, five hundred eleven million, three hundred forty-six thousand, five".