451212043443 has 8 divisors (see below), whose sum is σ = 687561209088. Its totient is φ = 257835453384.

The previous prime is 451212043439. The next prime is 451212043511. The reversal of 451212043443 is 344340212154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 451212043443 - 2² = 451212043439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (451212043433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10743143871 + ... + 10743143912.

It is an arithmetic number, because the mean of its divisors is an integer number (85945151136).

Almost surely, 2^451212043443 is an apocalyptic number.

451212043443 is a deficient number, since it is larger than the sum of its proper divisors (236349165645).

451212043443 is a wasteful number, since it uses less digits than its factorization.

451212043443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21486287793.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 451212043443 its reverse (344340212154), we get a palindrome (795552255597).

The spelling of 451212043443 in words is "four hundred fifty-one billion, two hundred twelve million, forty-three thousand, four hundred forty-three".