217237074712 has 96 divisors (see below), whose sum is σ = 504364158000. Its totient is φ = 87210224640.

The previous prime is 217237074707. The next prime is 217237074737. The reversal of 217237074712 is 217470732712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 499012 + ... + 826732.

Almost surely, 2^217237074712 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 217237074712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252182079000).

217237074712 is an abundant number, since it is smaller than the sum of its proper divisors (287127083288).

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

217237074712 is a wasteful number, since it uses less digits than its factorization.

217237074712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327849 (or 327838 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 43.

The spelling of 217237074712 in words is "two hundred seventeen billion, two hundred thirty-seven million, seventy-four thousand, seven hundred twelve".