212656618950 has 24 divisors (see below), whose sum is σ = 527388415368. Its totient is φ = 56708431680.

The previous prime is 212656618949. The next prime is 212656618963. The reversal of 212656618950 is 59816656212.

It is a happy number.

212656618950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×212656618950³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212656618893 and 212656618902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 708855247 + ... + 708855546.

It is an arithmetic number, because the mean of its divisors is an integer number (21974517307).

Almost surely, 2^212656618950 is an apocalyptic number.

212656618950 is an abundant number, since it is smaller than the sum of its proper divisors (314731796418).

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

212656618950 is a wasteful number, since it uses less digits than its factorization.

212656618950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417710808 (or 1417710803 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 212656618950 in words is "two hundred twelve billion, six hundred fifty-six million, six hundred eighteen thousand, nine hundred fifty".