212355640950 has 24 divisors (see below), whose sum is σ = 526641989928. Its totient is φ = 56628170880.

The previous prime is 212355640933. The next prime is 212355640979. The reversal of 212355640950 is 59046553212.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 707851987 + ... + 707852286.

It is an arithmetic number, because the mean of its divisors is an integer number (21943416247).

Almost surely, 2^212355640950 is an apocalyptic number.

212355640950 is an abundant number, since it is smaller than the sum of its proper divisors (314286348978).

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

212355640950 is a wasteful number, since it uses less digits than its factorization.

212355640950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415704288 (or 1415704283 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 212355640950 in words is "two hundred twelve billion, three hundred fifty-five million, six hundred forty thousand, nine hundred fifty".