212434375999999 has 4 divisors (see below), whose sum is σ = 214993826313336. Its totient is φ = 209874925686664.

The previous prime is 212434375999997. The next prime is 212434376000027. The reversal of 212434375999999 is 999999573434212.

212434375999999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212434375999999 - 2¹ = 212434375999997 is a prime.

It is a super-2 number, since 2×212434375999999² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212434375999991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279725156544 + ... + 1279725156709.

It is an arithmetic number, because the mean of its divisors is an integer number (53748456578334).

Almost surely, 2^{212434375999999} is an apocalyptic number.

212434375999999 is a deficient number, since it is larger than the sum of its proper divisors (2559450313337).

212434375999999 is an equidigital number, since it uses as much as digits as its factorization.

212434375999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559450313336.

The product of its digits is 10713850560, while the sum is 85.

The spelling of 212434375999999 in words is "two hundred twelve trillion, four hundred thirty-four billion, three hundred seventy-five million, nine hundred ninety-nine thousand, nine hundred ninety-nine".