683388949212 has 36 divisors (see below), whose sum is σ = 1749321930720. Its totient is φ = 224912817792.

The previous prime is 683388949193. The next prime is 683388949231. The reversal of 683388949212 is 212949883386.

683388949212 is a `hidden beast` number, since 6 + 8 + 338 + 89 + 4 + 9 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (683388949193) and next prime (683388949231).

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 683388949212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120142893 + ... + 120148580.

Almost surely, 2^683388949212 is an apocalyptic number.

It is an amenable number.

683388949212 is an abundant number, since it is smaller than the sum of its proper divisors (1065932981508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

683388949212 is a wasteful number, since it uses less digits than its factorization.

683388949212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240291562 (or 240291557 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The spelling of 683388949212 in words is "six hundred eighty-three billion, three hundred eighty-eight million, nine hundred forty-nine thousand, two hundred twelve".