243428822997 has 8 divisors (see below), whose sum is σ = 325608735744. Its totient is φ = 161767396128.

The previous prime is 243428822969. The next prime is 243428822999. The reversal of 243428822997 is 799228824342.

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

It is not a de Polignac number, because 243428822997 - 2¹⁴ = 243428806613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243428822997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243428822999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129620373 + ... + 129622250.

It is an arithmetic number, because the mean of its divisors is an integer number (40701091968).

Almost surely, 2^243428822997 is an apocalyptic number.

It is an amenable number.

243428822997 is a deficient number, since it is larger than the sum of its proper divisors (82179912747).

243428822997 is a wasteful number, since it uses less digits than its factorization.

243428822997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259242939.

The product of its digits is 27869184, while the sum is 60.

The spelling of 243428822997 in words is "two hundred forty-three billion, four hundred twenty-eight million, eight hundred twenty-two thousand, nine hundred ninety-seven".