243743745886 has 16 divisors (see below), whose sum is σ = 371381673600. Its totient is φ = 119962136448.

The previous prime is 243743745877. The next prime is 243743745913. The reversal of 243743745886 is 688547347342.

It is a super-2 number, since 2×243743745886² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3030591 + ... + 3109978.

It is an arithmetic number, because the mean of its divisors is an integer number (23211354600).

Almost surely, 2^243743745886 is an apocalyptic number.

243743745886 is a deficient number, since it is larger than the sum of its proper divisors (127637927714).

243743745886 is a wasteful number, since it uses less digits than its factorization.

243743745886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140883.

The product of its digits is 108380160, while the sum is 61.

The spelling of 243743745886 in words is "two hundred forty-three billion, seven hundred forty-three million, seven hundred forty-five thousand, eight hundred eighty-six".