212717844504 has 48 divisors (see below), whose sum is σ = 628484542920. Its totient is φ = 64459952640.

The previous prime is 212717844491. The next prime is 212717844529. The reversal of 212717844504 is 405448717212.

212717844504 is a `hidden beast` number, since 2 + 1 + 2 + 71 + 78 + 4 + 4 + 504 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 212717844504.

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 11 ways as a sum of consecutive naturals, for example, 134290777 + ... + 134292360.

Almost surely, 2^212717844504 is an apocalyptic number.

212717844504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212717844504 is an abundant number, since it is smaller than the sum of its proper divisors (415766698416).

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

212717844504 is a wasteful number, since it uses less digits than its factorization.

212717844504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268583160 (or 268583153 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The spelling of 212717844504 in words is "two hundred twelve billion, seven hundred seventeen million, eight hundred forty-four thousand, five hundred four".