451212043444 has 12 divisors (see below), whose sum is σ = 789632522784. Its totient is φ = 225602751224.

The previous prime is 451212043439. The next prime is 451212043511. The reversal of 451212043444 is 444340212154.

It is a super-2 number, since 2×451212043444² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492874 + ... + 1070209.

It is an arithmetic number, because the mean of its divisors is an integer number (65802710232).

Almost surely, 2^451212043444 is an apocalyptic number.

It is an amenable number.

451212043444 is a deficient number, since it is larger than the sum of its proper divisors (338420479340).

451212043444 is a wasteful number, since it uses less digits than its factorization.

451212043444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635254 (or 1635252 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 451212043444 its reverse (444340212154), we get a palindrome (895552255598).

The spelling of 451212043444 in words is "four hundred fifty-one billion, two hundred twelve million, forty-three thousand, four hundred forty-four".