243143231552 has 56 divisors (see below), whose sum is σ = 527357132736. Its totient is φ = 110545003008.

The previous prime is 243143231543. The next prime is 243143231587. The reversal of 243143231552 is 255132341342.

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, 2125148 + ... + 2236635.

It is an arithmetic number, because the mean of its divisors is an integer number (9417091656).

Almost surely, 2^243143231552 is an apocalyptic number.

It is an amenable number.

243143231552 is an abundant number, since it is smaller than the sum of its proper divisors (284213901184).

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

243143231552 is a wasteful number, since it uses less digits than its factorization.

243143231552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361875 (or 4361865 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

Adding to 243143231552 its reverse (255132341342), we get a palindrome (498275572894).

The spelling of 243143231552 in words is "two hundred forty-three billion, one hundred forty-three million, two hundred thirty-one thousand, five hundred fifty-two".