243006083887 has 4 divisors (see below), whose sum is σ = 277721238736. Its totient is φ = 208290929040.

The previous prime is 243006083851. The next prime is 243006083899. The reversal of 243006083887 is 788380600342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243006083887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243006083887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243006083087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17357577414 + ... + 17357577427.

It is an arithmetic number, because the mean of its divisors is an integer number (69430309684).

Almost surely, 2^243006083887 is an apocalyptic number.

243006083887 is a deficient number, since it is larger than the sum of its proper divisors (34715154849).

243006083887 is an equidigital number, since it uses as much as digits as its factorization.

243006083887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34715154848.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 243006083887 in words is "two hundred forty-three billion, six million, eighty-three thousand, eight hundred eighty-seven".