243969145444 has 6 divisors (see below), whose sum is σ = 426946004534. Its totient is φ = 121984572720.

The previous prime is 243969145439. The next prime is 243969145471. The reversal of 243969145444 is 444541969342.

It can be written as a sum of positive squares in only one way, i.e., 175654868544 + 68314276900 = 419112^2 + 261370^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30496143177 + ... + 30496143184.

Almost surely, 2^243969145444 is an apocalyptic number.

It is an amenable number.

243969145444 is a deficient number, since it is larger than the sum of its proper divisors (182976859090).

243969145444 is a wasteful number, since it uses less digits than its factorization.

243969145444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60992286365 (or 60992286363 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 55.

The spelling of 243969145444 in words is "two hundred forty-three billion, nine hundred sixty-nine million, one hundred forty-five thousand, four hundred forty-four".