243950181442 has 32 divisors (see below), whose sum is σ = 409312440000. Its totient is φ = 109006944640.

The previous prime is 243950181437. The next prime is 243950181487. The reversal of 243950181442 is 244181059342.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619567 + ... + 933682.

It is an arithmetic number, because the mean of its divisors is an integer number (12791013750).

Almost surely, 2^243950181442 is an apocalyptic number.

243950181442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243950181442 is a deficient number, since it is larger than the sum of its proper divisors (165362258558).

243950181442 is a wasteful number, since it uses less digits than its factorization.

243950181442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553343 (or 1553321 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 243950181442 in words is "two hundred forty-three billion, nine hundred fifty million, one hundred eighty-one thousand, four hundred forty-two".