212389736256 has 448 divisors, whose sum is σ = 655067381760. Its totient is φ = 67426007040.

The previous prime is 212389736239. The next prime is 212389736281. The reversal of 212389736256 is 652637983212.

212389736256 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 8 + 9 + 7 + 3 + 625 + 6 = 666.

212389736256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 669999010 + ... + 669999326.

Almost surely, 2^212389736256 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 212389736256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327533690880).

212389736256 is an abundant number, since it is smaller than the sum of its proper divisors (442677645504).

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

212389736256 is a wasteful number, since it uses less digits than its factorization.

212389736256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 563 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 212389736256 in words is "two hundred twelve billion, three hundred eighty-nine million, seven hundred thirty-six thousand, two hundred fifty-six".