212202671648 has 90 divisors (see below), whose sum is σ = 460232407845. Its totient is φ = 96312437760.

The previous prime is 212202671627. The next prime is 212202671669. The reversal of 212202671648 is 846176202212.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an interprime number because it is at equal distance from previous prime (212202671627) and next prime (212202671669).

It can be written as a sum of positive squares in 2 ways, for example, as 205669506064 + 6533165584 = 453508^2 + 80828^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=325732.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 315308240 + ... + 315308912.

Almost surely, 2^212202671648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212202671648

212202671648 is an abundant number, since it is smaller than the sum of its proper divisors (248029736197).

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

212202671648 is an frugal number, since it uses more digits than its factorization.

212202671648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 212202671648 in words is "two hundred twelve billion, two hundred two million, six hundred seventy-one thousand, six hundred forty-eight".