212849358736 has 45 divisors (see below), whose sum is σ = 479754648369. Its totient is φ = 91215617472.

The previous prime is 212849358719. The next prime is 212849358763. The reversal of 212849358736 is 637853948212.

It is a happy number.

The square root of 212849358736 is 461356.

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

It can be written as a sum of positive squares in only one way, i.e., 70979616400 + 141869742336 = 266420^2 + 376656^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12909730 + ... + 12926206.

Almost surely, 2^212849358736 is an apocalyptic number.

212849358736 is the 461356-th square number.

It is an amenable number.

212849358736 is an abundant number, since it is smaller than the sum of its proper divisors (266905289633).

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

212849358736 is an frugal number, since it uses more digits than its factorization.

212849358736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32976 (or 16486 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 58.

The spelling of 212849358736 in words is "two hundred twelve billion, eight hundred forty-nine million, three hundred fifty-eight thousand, seven hundred thirty-six".