268424861 has 4 divisors (see below), whose sum is σ = 268698912. Its totient is φ = 268150812.

The previous prime is 268424809. The next prime is 268424873. The reversal of 268424861 is 168424862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168424862 = 2 ⋅84212431.

It is a cyclic number.

It is not a de Polignac number, because 268424861 - 2⁶ = 268424797 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 (268424161) 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, 135551 + ... + 137516.

It is an arithmetic number, because the mean of its divisors is an integer number (67174728).

Almost surely, 2^268424861 is an apocalyptic number.

It is an amenable number.

268424861 is a deficient number, since it is larger than the sum of its proper divisors (274051).

268424861 is an equidigital number, since it uses as much as digits as its factorization.

268424861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274050.

The product of its digits is 147456, while the sum is 41.

The square root of 268424861 is about 16383.6766630693. The cubic root of 268424861 is about 645.0710904557.

Subtracting from 268424861 its reverse (168424862), we obtain a palindrome (99999999).

The spelling of 268424861 in words is "two hundred sixty-eight million, four hundred twenty-four thousand, eight hundred sixty-one".