212237915781408 has 192 divisors, whose sum is σ = 624297349468800. Its totient is φ = 62566378905600.

The previous prime is 212237915781377. The next prime is 212237915781413. The reversal of 212237915781408 is 804187519732212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248110018 + ... + 248963966.

It is an arithmetic number, because the mean of its divisors is an integer number (3251548695150).

Almost surely, 2^{212237915781408} 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 212237915781408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312148674734400).

212237915781408 is an abundant number, since it is smaller than the sum of its proper divisors (412059433687392).

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

212237915781408 is a wasteful number, since it uses less digits than its factorization.

212237915781408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860371 (or 860363 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 212237915781408 in words is "two hundred twelve trillion, two hundred thirty-seven billion, nine hundred fifteen million, seven hundred eighty-one thousand, four hundred eight".