12668289502 has 16 divisors (see below), whose sum is σ = 20979689472. Its totient is φ = 5688935320.

The previous prime is 12668289433. The next prime is 12668289547. The reversal of 12668289502 is 20598286621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 3467038 + ... + 3470689.

It is an arithmetic number, because the mean of its divisors is an integer number (1311230592).

Almost surely, 2^12668289502 is an apocalyptic number.

12668289502 is a deficient number, since it is larger than the sum of its proper divisors (8311399970).

12668289502 is a wasteful number, since it uses less digits than its factorization.

12668289502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6937823.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 12668289502 in words is "twelve billion, six hundred sixty-eight million, two hundred eighty-nine thousand, five hundred two".