243949834079 has 8 divisors (see below), whose sum is σ = 279230727168. Its totient is φ = 208776670200.

The previous prime is 243949834049. The next prime is 243949834103. The reversal of 243949834079 is 970438949342.

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

It is a de Polignac number, because none of the positive numbers 2^k-243949834079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243949834049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26927447 + ... + 26936504.

It is an arithmetic number, because the mean of its divisors is an integer number (34903840896).

Almost surely, 2^243949834079 is an apocalyptic number.

243949834079 is a deficient number, since it is larger than the sum of its proper divisors (35280893089).

243949834079 is an equidigital number, since it uses as much as digits as its factorization.

243949834079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53864605.

The product of its (nonzero) digits is 47029248, while the sum is 62.

The spelling of 243949834079 in words is "two hundred forty-three billion, nine hundred forty-nine million, eight hundred thirty-four thousand, seventy-nine".