12639524989036 has 48 divisors (see below), whose sum is σ = 24476986991520. Its totient is φ = 5662728990720.

The previous prime is 12639524989027. The next prime is 12639524989121. The reversal of 12639524989036 is 63098942593621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3461280 + ... + 6104056.

It is an arithmetic number, because the mean of its divisors is an integer number (509937228990).

Almost surely, 2^{12639524989036} is an apocalyptic number.

It is an amenable number.

12639524989036 is a deficient number, since it is larger than the sum of its proper divisors (11837462002484).

12639524989036 is a wasteful number, since it uses less digits than its factorization.

12639524989036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644354 (or 2644352 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 67.

The spelling of 12639524989036 in words is "twelve trillion, six hundred thirty-nine billion, five hundred twenty-four million, nine hundred eighty-nine thousand, thirty-six".