1068914881 has 4 divisors (see below), whose sum is σ = 1070256852. Its totient is φ = 1067572912.

The previous prime is 1068914849. The next prime is 1068914893. The reversal of 1068914881 is 1884198601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1884198601 = 53 ⋅35550917.

It can be written as a sum of positive squares in 2 ways, for example, as 307651600 + 761263281 = 17540^2 + 27591^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068914881 - 2⁵ = 1068914849 is a prime.

It is a super-2 number, since 2×1068914881² = 2285158045646488322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1068914801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669790 + ... + 671383.

It is an arithmetic number, because the mean of its divisors is an integer number (267564213).

Almost surely, 2^1068914881 is an apocalyptic number.

It is an amenable number.

1068914881 is a deficient number, since it is larger than the sum of its proper divisors (1341971).

1068914881 is an equidigital number, since it uses as much as digits as its factorization.

1068914881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341970.

The product of its (nonzero) digits is 110592, while the sum is 46.

The square root of 1068914881 is about 32694.2637323430. The cubic root of 1068914881 is about 1022.4632510510.

The spelling of 1068914881 in words is "one billion, sixty-eight million, nine hundred fourteen thousand, eight hundred eighty-one".