243415455456 has 96 divisors (see below), whose sum is σ = 667173846528. Its totient is φ = 77561003520.

The previous prime is 243415455449. The next prime is 243415455457. The reversal of 243415455456 is 654554514342.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243415455457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3491661 + ... + 3560691.

It is an arithmetic number, because the mean of its divisors is an integer number (6949727568).

Almost surely, 2^243415455456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243415455456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333586923264).

243415455456 is an abundant number, since it is smaller than the sum of its proper divisors (423758391072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243415455456 is a wasteful number, since it uses less digits than its factorization.

243415455456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70664 (or 70656 counting only the distinct ones).

The product of its digits is 5760000, while the sum is 48.

Adding to 243415455456 its reverse (654554514342), we get a palindrome (897969969798).

The spelling of 243415455456 in words is "two hundred forty-three billion, four hundred fifteen million, four hundred fifty-five thousand, four hundred fifty-six".