243793941355 has 4 divisors (see below), whose sum is σ = 292552729632. Its totient is φ = 195035153080.

The previous prime is 243793941323. The next prime is 243793941371. The reversal of 243793941355 is 553149397342.

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

It is not a de Polignac number, because 243793941355 - 2⁵ = 243793941323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243793941296 and 243793941305.

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 3 ways as a sum of consecutive naturals, for example, 24379394131 + ... + 24379394140.

It is an arithmetic number, because the mean of its divisors is an integer number (73138182408).

Almost surely, 2^243793941355 is an apocalyptic number.

243793941355 is a deficient number, since it is larger than the sum of its proper divisors (48758788277).

243793941355 is an equidigital number, since it uses as much as digits as its factorization.

243793941355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48758788276.

The product of its digits is 12247200, while the sum is 55.

The spelling of 243793941355 in words is "two hundred forty-three billion, seven hundred ninety-three million, nine hundred forty-one thousand, three hundred fifty-five".