243492312492 has 240 divisors, whose sum is σ = 787181472000. Its totient is φ = 64524781440.

The previous prime is 243492312467. The next prime is 243492312577. The reversal of 243492312492 is 294213294342.

243492312492 is a `hidden beast` number, since 2 + 43 + 4 + 92 + 31 + 2 + 492 = 666.

243492312492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 742009 + ... + 1018607.

It is an arithmetic number, because the mean of its divisors is an integer number (3279922800).

Almost surely, 2^243492312492 is an apocalyptic number.

243492312492 is a gapful number since it is divisible by the number (22) 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 243492312492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393590736000).

243492312492 is an abundant number, since it is smaller than the sum of its proper divisors (543689159508).

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

243492312492 is a wasteful number, since it uses less digits than its factorization.

243492312492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276658 (or 276647 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The spelling of 243492312492 in words is "two hundred forty-three billion, four hundred ninety-two million, three hundred twelve thousand, four hundred ninety-two".