12512649658245 has 64 divisors (see below), whose sum is σ = 21869500262400. Its totient is φ = 6058621981440.

The previous prime is 12512649658193. The next prime is 12512649658337. The reversal of 12512649658245 is 54285694621521.

It is a happy number.

It is not a de Polignac number, because 12512649658245 - 2⁶ = 12512649658181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 489163866 + ... + 489189444.

It is an arithmetic number, because the mean of its divisors is an integer number (341710941600).

Almost surely, 2^{12512649658245} is an apocalyptic number.

12512649658245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12512649658245 is a deficient number, since it is larger than the sum of its proper divisors (9356850604155).

12512649658245 is a wasteful number, since it uses less digits than its factorization.

12512649658245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29450.

The product of its digits is 41472000, while the sum is 60.

The spelling of 12512649658245 in words is "twelve trillion, five hundred twelve billion, six hundred forty-nine million, six hundred fifty-eight thousand, two hundred forty-five".