212941639936 has 81 divisors (see below), whose sum is σ = 430136993559. Its totient is φ = 105211968000.

The previous prime is 212941639931. The next prime is 212941639961. The reversal of 212941639936 is 639936149212.

The square root of 212941639936 is 461456.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212941639931) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1114877601 + ... + 1114877791.

Almost surely, 2^212941639936 is an apocalyptic number.

212941639936 is the 461456-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212941639936

212941639936 is an abundant number, since it is smaller than the sum of its proper divisors (217195353623).

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

212941639936 is an frugal number, since it uses more digits than its factorization.

212941639936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 344 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 55.

The spelling of 212941639936 in words is "two hundred twelve billion, nine hundred forty-one million, six hundred thirty-nine thousand, nine hundred thirty-six".