212717844498 has 16 divisors (see below), whose sum is σ = 425441091456. Its totient is φ = 70905047760.

The previous prime is 212717844491. The next prime is 212717844529. The reversal of 212717844498 is 894448717212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212717844491) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 436215 + ... + 784677.

It is an arithmetic number, because the mean of its divisors is an integer number (26590068216).

Almost surely, 2^212717844498 is an apocalyptic number.

212717844498 is an abundant number, since it is smaller than the sum of its proper divisors (212723246958).

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

212717844498 is a wasteful number, since it uses less digits than its factorization.

212717844498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450209.

The product of its digits is 7225344, while the sum is 57.

The spelling of 212717844498 in words is "two hundred twelve billion, seven hundred seventeen million, eight hundred forty-four thousand, four hundred ninety-eight".