12461908645 has 32 divisors (see below), whose sum is σ = 15850598400. Its totient is φ = 9386741760.

The previous prime is 12461908637. The next prime is 12461908661. The reversal of 12461908645 is 54680916421.

It is a happy number.

12461908645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12461908645 - 2³ = 12461908637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12461908595 and 12461908604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2127681 + ... + 2133529.

It is an arithmetic number, because the mean of its divisors is an integer number (495331200).

Almost surely, 2^12461908645 is an apocalyptic number.

It is an amenable number.

12461908645 is a deficient number, since it is larger than the sum of its proper divisors (3388689755).

12461908645 is a wasteful number, since it uses less digits than its factorization.

12461908645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6165.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 12461908645 in words is "twelve billion, four hundred sixty-one million, nine hundred eight thousand, six hundred forty-five".