268118645 has 8 divisors (see below), whose sum is σ = 340668504. Its totient is φ = 201877504.

The previous prime is 268118593. The next prime is 268118647. The reversal of 268118645 is 546811862.

It can be written as a sum of positive squares in 4 ways, for example, as 49758916 + 218359729 = 7054^2 + 14777^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 268118645 - 2¹⁰ = 268117621 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 (268118647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1577084 + ... + 1577253.

It is an arithmetic number, because the mean of its divisors is an integer number (42583563).

Almost surely, 2^268118645 is an apocalyptic number.

It is an amenable number.

268118645 is a deficient number, since it is larger than the sum of its proper divisors (72549859).

268118645 is a wasteful number, since it uses less digits than its factorization.

268118645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154359.

The product of its digits is 92160, while the sum is 41.

The square root of 268118645 is about 16374.3288412075. The cubic root of 268118645 is about 644.8257005544.

The spelling of 268118645 in words is "two hundred sixty-eight million, one hundred eighteen thousand, six hundred forty-five".