268855861 has 8 divisors (see below), whose sum is σ = 277162560. Its totient is φ = 260674272.

The previous prime is 268855859. The next prime is 268855877. The reversal of 268855861 is 168558862.

It is a happy number.

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

It is not a de Polignac number, because 268855861 - 2¹ = 268855859 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 (268855261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26905 + ... + 35518.

It is an arithmetic number, because the mean of its divisors is an integer number (34645320).

Almost surely, 2^268855861 is an apocalyptic number.

It is an amenable number.

268855861 is a deficient number, since it is larger than the sum of its proper divisors (8306699).

268855861 is an equidigital number, since it uses as much as digits as its factorization.

268855861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62555.

The product of its digits is 921600, while the sum is 49.

The square root of 268855861 is about 16396.8247230981. The cubic root of 268855861 is about 645.4161615323.

The spelling of 268855861 in words is "two hundred sixty-eight million, eight hundred fifty-five thousand, eight hundred sixty-one".