12518803584478 has 24 divisors (see below), whose sum is σ = 19198089469224. Its totient is φ = 6122440242000.

The previous prime is 12518803584389. The next prime is 12518803584491. The reversal of 12518803584478 is 87448530881521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6287553 + ... + 8035603.

It is an arithmetic number, because the mean of its divisors is an integer number (799920394551).

Almost surely, 2^{12518803584478} is an apocalyptic number.

12518803584478 is a deficient number, since it is larger than the sum of its proper divisors (6679285884746).

12518803584478 is a wasteful number, since it uses less digits than its factorization.

12518803584478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749768 (or 1749721 counting only the distinct ones).

The product of its (nonzero) digits is 68812800, while the sum is 64.

The spelling of 12518803584478 in words is "twelve trillion, five hundred eighteen billion, eight hundred three million, five hundred eighty-four thousand, four hundred seventy-eight".