4231118534478 has 64 divisors (see below), whose sum is σ = 9302552497152. Its totient is φ = 1272300410880.

The previous prime is 4231118534471. The next prime is 4231118534497. The reversal of 4231118534478 is 8744358111324.

4231118534478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 4231118534478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231118534471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23355675 + ... + 23536137.

It is an arithmetic number, because the mean of its divisors is an integer number (145352382768).

Almost surely, 2^{4231118534478} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4231118534478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4651276248576).

4231118534478 is an abundant number, since it is smaller than the sum of its proper divisors (5071433962674).

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

4231118534478 is a wasteful number, since it uses less digits than its factorization.

4231118534478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183209.

The product of its digits is 2580480, while the sum is 51.

The spelling of 4231118534478 in words is "four trillion, two hundred thirty-one billion, one hundred eighteen million, five hundred thirty-four thousand, four hundred seventy-eight".