212050450644 has 12 divisors (see below), whose sum is σ = 494784384864. Its totient is φ = 70683483544.

The previous prime is 212050450639. The next prime is 212050450669. The reversal of 212050450644 is 446054050212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8835435432 + ... + 8835435455.

It is an arithmetic number, because the mean of its divisors is an integer number (41232032072).

Almost surely, 2^212050450644 is an apocalyptic number.

It is an amenable number.

212050450644 is an abundant number, since it is smaller than the sum of its proper divisors (282733934220).

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

212050450644 is a wasteful number, since it uses less digits than its factorization.

212050450644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17670870894 (or 17670870892 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 212050450644 in words is "two hundred twelve billion, fifty million, four hundred fifty thousand, six hundred forty-four".