243622154642 has 8 divisors (see below), whose sum is σ = 377221400832. Its totient is φ = 117881687700.

The previous prime is 243622154617. The next prime is 243622154681. The reversal of 243622154642 is 246451226342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 243622154642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1964694734 + ... + 1964694857.

It is an arithmetic number, because the mean of its divisors is an integer number (47152675104).

Almost surely, 2^243622154642 is an apocalyptic number.

243622154642 is a deficient number, since it is larger than the sum of its proper divisors (133599246190).

243622154642 is a wasteful number, since it uses less digits than its factorization.

243622154642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929389624.

The product of its digits is 552960, while the sum is 41.

The spelling of 243622154642 in words is "two hundred forty-three billion, six hundred twenty-two million, one hundred fifty-four thousand, six hundred forty-two".