212454322399999 has 4 divisors (see below), whose sum is σ = 212459477472936. Its totient is φ = 212449167327064.

The previous prime is 212454322399973. The next prime is 212454322400027. The reversal of 212454322399999 is 999993223454212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212454322399999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212454322399399) 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, 2577474649 + ... + 2577557074.

It is an arithmetic number, because the mean of its divisors is an integer number (53114869368234).

Almost surely, 2^{212454322399999} is an apocalyptic number.

212454322399999 is a deficient number, since it is larger than the sum of its proper divisors (5155072937).

212454322399999 is an equidigital number, since it uses as much as digits as its factorization.

212454322399999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155072936.

The product of its digits is 680244480, while the sum is 73.

The spelling of 212454322399999 in words is "two hundred twelve trillion, four hundred fifty-four billion, three hundred twenty-two million, three hundred ninety-nine thousand, nine hundred ninety-nine".