268559961 has 8 divisors (see below), whose sum is σ = 360361344. Its totient is φ = 177899280.

The previous prime is 268559953. The next prime is 268559969. The reversal of 268559961 is 169955862.

It is an interprime number because it is at equal distance from previous prime (268559953) and next prime (268559969).

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

It is not a de Polignac number, because 268559961 - 2³ = 268559953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268559969) 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, 284625 + ... + 285566.

It is an arithmetic number, because the mean of its divisors is an integer number (45045168).

Almost surely, 2^268559961 is an apocalyptic number.

It is an amenable number.

268559961 is a deficient number, since it is larger than the sum of its proper divisors (91801383).

268559961 is a wasteful number, since it uses less digits than its factorization.

268559961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570351.

The product of its digits is 1166400, while the sum is 51.

The square root of 268559961 is about 16387.7991505876. The cubic root of 268559961 is about 645.1792951467.

The spelling of 268559961 in words is "two hundred sixty-eight million, five hundred fifty-nine thousand, nine hundred sixty-one".