235243143618 has 96 divisors (see below), whose sum is σ = 572239696896. Its totient is φ = 64161310752.

The previous prime is 235243143617. The next prime is 235243143647. The reversal of 235243143618 is 816341342532.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 235243143618.

It is not an unprimeable number, because it can be changed into a prime (235243143613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3366705 + ... + 3435867.

It is an arithmetic number, because the mean of its divisors is an integer number (5960830176).

Almost surely, 2^235243143618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235243143618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286119848448).

235243143618 is an abundant number, since it is smaller than the sum of its proper divisors (336996553278).

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

235243143618 is a wasteful number, since it uses less digits than its factorization.

235243143618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69708 (or 69701 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The spelling of 235243143618 in words is "two hundred thirty-five billion, two hundred forty-three million, one hundred forty-three thousand, six hundred eighteen".