12546491511 has 8 divisors (see below), whose sum is σ = 16756217344. Its totient is φ = 8350546680.

The previous prime is 12546491501. The next prime is 12546491519. The reversal of 12546491511 is 11519464521.

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

It is not a de Polignac number, because 12546491511 - 2⁷ = 12546491383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12546491511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12546491519) by changing a digit.

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, 3443125 + ... + 3446766.

It is an arithmetic number, because the mean of its divisors is an integer number (2094527168).

Almost surely, 2^12546491511 is an apocalyptic number.

12546491511 is a deficient number, since it is larger than the sum of its proper divisors (4209725833).

12546491511 is an equidigital number, since it uses as much as digits as its factorization.

12546491511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6890501.

The product of its digits is 43200, while the sum is 39.

The spelling of 12546491511 in words is "twelve billion, five hundred forty-six million, four hundred ninety-one thousand, five hundred eleven".