268434343439 has 4 divisors (see below), whose sum is σ = 277093515840. Its totient is φ = 259775171040.

The previous prime is 268434343393. The next prime is 268434343447. The reversal of 268434343439 is 934343434862.

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 268434343439 - 2²⁰ = 268433294863 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 (268434343339) 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, 4329586154 + ... + 4329586215.

It is an arithmetic number, because the mean of its divisors is an integer number (69273378960).

Almost surely, 2^268434343439 is an apocalyptic number.

268434343439 is a deficient number, since it is larger than the sum of its proper divisors (8659172401).

268434343439 is an equidigital number, since it uses as much as digits as its factorization.

268434343439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8659172400.

The product of its digits is 17915904, while the sum is 53.

The spelling of 268434343439 in words is "two hundred sixty-eight billion, four hundred thirty-four million, three hundred forty-three thousand, four hundred thirty-nine".