243812471444 has 6 divisors (see below), whose sum is σ = 426671825034. Its totient is φ = 121906235720.

The previous prime is 243812471443. The next prime is 243812471453. The reversal of 243812471444 is 444174218342.

It can be written as a sum of positive squares in only one way, i.e., 157123446544 + 86689024900 = 396388^2 + 294430^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243812471395 and 243812471404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243812471443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30476558927 + ... + 30476558934.

It is an arithmetic number, because the mean of its divisors is an integer number (71111970839).

Almost surely, 2^243812471444 is an apocalyptic number.

It is an amenable number.

243812471444 is a deficient number, since it is larger than the sum of its proper divisors (182859353590).

243812471444 is a wasteful number, since it uses less digits than its factorization.

243812471444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60953117865 (or 60953117863 counting only the distinct ones).

The product of its digits is 688128, while the sum is 44.

Adding to 243812471444 its reverse (444174218342), we get a palindrome (687986689786).

The spelling of 243812471444 in words is "two hundred forty-three billion, eight hundred twelve million, four hundred seventy-one thousand, four hundred forty-four".