212434144615 has 16 divisors (see below), whose sum is σ = 317823552000. Its totient is φ = 132426479520.

The previous prime is 212434144613. The next prime is 212434144639. The reversal of 212434144615 is 516441434212.

It is not a de Polignac number, because 212434144615 - 2¹ = 212434144613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212434144613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275888115 + ... + 275888884.

It is an arithmetic number, because the mean of its divisors is an integer number (19863972000).

Almost surely, 2^212434144615 is an apocalyptic number.

212434144615 is a deficient number, since it is larger than the sum of its proper divisors (105389407385).

212434144615 is a wasteful number, since it uses less digits than its factorization.

212434144615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551777022.

The product of its digits is 92160, while the sum is 37.

Adding to 212434144615 its reverse (516441434212), we get a palindrome (728875578827).

The spelling of 212434144615 in words is "two hundred twelve billion, four hundred thirty-four million, one hundred forty-four thousand, six hundred fifteen".