1068318761 has 4 divisors (see below), whose sum is σ = 1068387012. Its totient is φ = 1068250512.

The previous prime is 1068318749. The next prime is 1068318787. The reversal of 1068318761 is 1678138601.

1068318761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 324720400 + 743598361 = 18020^2 + 27269^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068318761 - 2¹⁰ = 1068317737 is a prime.

It is a super-2 number, since 2×1068318761² = 2282609950209150242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1068318061) 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, 2351 + ... + 46283.

It is an arithmetic number, because the mean of its divisors is an integer number (267096753).

Almost surely, 2^1068318761 is an apocalyptic number.

It is an amenable number.

1068318761 is a deficient number, since it is larger than the sum of its proper divisors (68251).

1068318761 is an equidigital number, since it uses as much as digits as its factorization.

1068318761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68250.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1068318761 is about 32685.1458769882. The cubic root of 1068318761 is about 1022.2731441976.

The spelling of 1068318761 in words is "one billion, sixty-eight million, three hundred eighteen thousand, seven hundred sixty-one".