243790479347 has 4 divisors (see below), whose sum is σ = 243994831320. Its totient is φ = 243586127376.

The previous prime is 243790479319. The next prime is 243790479349. The reversal of 243790479347 is 743974097342.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 243790479347 - 2¹² = 243790475251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243790479349) 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 3 ways as a sum of consecutive naturals, for example, 102174197 + ... + 102176582.

It is an arithmetic number, because the mean of its divisors is an integer number (60998707830).

Almost surely, 2^243790479347 is an apocalyptic number.

243790479347 is a deficient number, since it is larger than the sum of its proper divisors (204351973).

243790479347 is a wasteful number, since it uses less digits than its factorization.

243790479347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204351972.

The product of its (nonzero) digits is 32006016, while the sum is 59.

The spelling of 243790479347 in words is "two hundred forty-three billion, seven hundred ninety million, four hundred seventy-nine thousand, three hundred forty-seven".