212408752728 has 64 divisors (see below), whose sum is σ = 535566274560. Its totient is φ = 70197757056.

The previous prime is 212408752691. The next prime is 212408752753. The reversal of 212408752728 is 827257804212.

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 15 ways as a sum of consecutive naturals, for example, 4619226 + ... + 4664982.

It is an arithmetic number, because the mean of its divisors is an integer number (8368223040).

Almost surely, 2^212408752728 is an apocalyptic number.

It is an amenable number.

212408752728 is an abundant number, since it is smaller than the sum of its proper divisors (323157521832).

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

212408752728 is a wasteful number, since it uses less digits than its factorization.

212408752728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47416 (or 47412 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 48.

The spelling of 212408752728 in words is "two hundred twelve billion, four hundred eight million, seven hundred fifty-two thousand, seven hundred twenty-eight".