243005374762212 has 24 divisors (see below), whose sum is σ = 567028124107200. Its totient is φ = 80999565445216.

The previous prime is 243005374762193. The next prime is 243005374762273. The reversal of 243005374762212 is 212267473500342.

It is a happy number.

It is a super-2 number, since 2×243005374762212² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277812912 + ... + 278686247.

It is an arithmetic number, because the mean of its divisors is an integer number (23626171837800).

Almost surely, 2^{243005374762212} is an apocalyptic number.

It is an amenable number.

243005374762212 is an abundant number, since it is smaller than the sum of its proper divisors (324022749344988).

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

243005374762212 is a wasteful number, since it uses less digits than its factorization.

243005374762212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556535555 (or 556535553 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 48.

The spelling of 243005374762212 in words is "two hundred forty-three trillion, five billion, three hundred seventy-four million, seven hundred sixty-two thousand, two hundred twelve".