243345344154 has 64 divisors (see below), whose sum is σ = 539533716480. Its totient is φ = 72549544320.

The previous prime is 243345344147. The next prime is 243345344159. The reversal of 243345344154 is 451443543342.

It is not an unprimeable number, because it can be changed into a prime (243345344159) 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, 3543387 + ... + 3611409.

It is an arithmetic number, because the mean of its divisors is an integer number (8430214320).

Almost surely, 2^243345344154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243345344154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269766858240).

243345344154 is an abundant number, since it is smaller than the sum of its proper divisors (296188372326).

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

243345344154 is a wasteful number, since it uses less digits than its factorization.

243345344154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68915.

The product of its digits is 1382400, while the sum is 42.

Adding to 243345344154 its reverse (451443543342), we get a palindrome (694788887496).

The spelling of 243345344154 in words is "two hundred forty-three billion, three hundred forty-five million, three hundred forty-four thousand, one hundred fifty-four".