243211064904 has 48 divisors (see below), whose sum is σ = 663058893120. Its totient is φ = 80533461600.

The previous prime is 243211064903. The next prime is 243211064933. The reversal of 243211064904 is 409460112342.

243211064904 is a `hidden beast` number, since 2 + 4 + 3 + 2 + 1 + 1 + 0 + 649 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (243211064903) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11174332 + ... + 11196075.

It is an arithmetic number, because the mean of its divisors is an integer number (13813726940).

Almost surely, 2^243211064904 is an apocalyptic number.

243211064904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243211064904 is an abundant number, since it is smaller than the sum of its proper divisors (419847828216).

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

243211064904 is a wasteful number, since it uses less digits than its factorization.

243211064904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22370570 (or 22370563 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 243211064904 in words is "two hundred forty-three billion, two hundred eleven million, sixty-four thousand, nine hundred four".