243425873834 has 24 divisors (see below), whose sum is σ = 431331275232. Its totient is φ = 102136728720.

The previous prime is 243425873809. The next prime is 243425873837. The reversal of 243425873834 is 438378524342.

It is not an unprimeable number, because it can be changed into a prime (243425873837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32732414 + ... + 32739849.

It is an arithmetic number, because the mean of its divisors is an integer number (17972136468).

Almost surely, 2^243425873834 is an apocalyptic number.

243425873834 is a deficient number, since it is larger than the sum of its proper divisors (187905401398).

243425873834 is a wasteful number, since it uses less digits than its factorization.

243425873834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65472302 (or 65472289 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 53.

The spelling of 243425873834 in words is "two hundred forty-three billion, four hundred twenty-five million, eight hundred seventy-three thousand, eight hundred thirty-four".