268308256471 has 4 divisors (see below), whose sum is σ = 268361067744. Its totient is φ = 268255445200.

The previous prime is 268308256451. The next prime is 268308256529. The reversal of 268308256471 is 174652803862.

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 268308256471 - 2¹⁹ = 268307732183 is a prime.

It is a super-3 number, since 3×268308256471³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268308256451) 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, 26398015 + ... + 26408176.

It is an arithmetic number, because the mean of its divisors is an integer number (67090266936).

Almost surely, 2^268308256471 is an apocalyptic number.

268308256471 is a deficient number, since it is larger than the sum of its proper divisors (52811273).

268308256471 is an equidigital number, since it uses as much as digits as its factorization.

268308256471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52811272.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 268308256471 in words is "two hundred sixty-eight billion, three hundred eight million, two hundred fifty-six thousand, four hundred seventy-one".