212849718768 has 120 divisors (see below), whose sum is σ = 606162810240. Its totient is φ = 69703286400.

The previous prime is 212849718751. The next prime is 212849718793. The reversal of 212849718768 is 867817948212.

212849718768 is a `hidden beast` number, since 2 + 1 + 2 + 8 + 497 + 1 + 87 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15141343 + ... + 15155393.

It is an arithmetic number, because the mean of its divisors is an integer number (5051356752).

Almost surely, 2^212849718768 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 212849718768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303081405120).

212849718768 is an abundant number, since it is smaller than the sum of its proper divisors (393313091472).

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

212849718768 is a wasteful number, since it uses less digits than its factorization.

212849718768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15907 (or 15898 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 63.

The spelling of 212849718768 in words is "two hundred twelve billion, eight hundred forty-nine million, seven hundred eighteen thousand, seven hundred sixty-eight".