243397562406 has 16 divisors (see below), whose sum is σ = 487363157424. Its totient is φ = 81037848704.

The previous prime is 243397562393. The next prime is 243397562423. The reversal of 243397562406 is 604265793342.

243397562406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 23662455 + ... + 23672738.

It is an arithmetic number, because the mean of its divisors is an integer number (30460197339).

Almost surely, 2^243397562406 is an apocalyptic number.

243397562406 is an abundant number, since it is smaller than the sum of its proper divisors (243965595018).

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

243397562406 is a wasteful number, since it uses less digits than its factorization.

243397562406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47336055.

The product of its (nonzero) digits is 6531840, while the sum is 51.

The spelling of 243397562406 in words is "two hundred forty-three billion, three hundred ninety-seven million, five hundred sixty-two thousand, four hundred six".