243276493824 has 880 divisors, whose sum is σ = 904132846848. Its totient is φ = 63446188032.

The previous prime is 243276493819. The next prime is 243276493877. The reversal of 243276493824 is 428394672342.

243276493824 is a `hidden beast` number, since 2 + 4 + 3 + 2 + 76 + 493 + 82 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1260499872 + ... + 1260500064.

Almost surely, 2^243276493824 is an apocalyptic number.

243276493824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243276493824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452066423424).

243276493824 is an abundant number, since it is smaller than the sum of its proper divisors (660856353024).

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

243276493824 is a wasteful number, since it uses less digits than its factorization.

243276493824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 385 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 54.

The spelling of 243276493824 in words is "two hundred forty-three billion, two hundred seventy-six million, four hundred ninety-three thousand, eight hundred twenty-four".