243007640012 has 6 divisors (see below), whose sum is σ = 425263370028. Its totient is φ = 121503820004.

The previous prime is 243007640011. The next prime is 243007640021. The reversal of 243007640012 is 210046700342.

243007640012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243007640011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30375954998 + ... + 30375955005.

It is an arithmetic number, because the mean of its divisors is an integer number (70877228338).

Almost surely, 2^243007640012 is an apocalyptic number.

It is an amenable number.

243007640012 is a deficient number, since it is larger than the sum of its proper divisors (182255730016).

243007640012 is a wasteful number, since it uses less digits than its factorization.

243007640012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60751910007 (or 60751910005 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The spelling of 243007640012 in words is "two hundred forty-three billion, seven million, six hundred forty thousand, twelve".