1068781144 has 16 divisors (see below), whose sum is σ = 2006644320. Its totient is φ = 533676000.

The previous prime is 1068781121. The next prime is 1068781159. The reversal of 1068781144 is 4411878601.

It is a super-2 number, since 2×1068781144² = 2284586267539897472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1068781097 and 1068781106.

It is a congruent number.

It is an unprimeable number.

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, 82939 + ... + 94954.

It is an arithmetic number, because the mean of its divisors is an integer number (125415270).

Almost surely, 2^1068781144 is an apocalyptic number.

It is an amenable number.

1068781144 is a deficient number, since it is larger than the sum of its proper divisors (937863176).

1068781144 is a wasteful number, since it uses less digits than its factorization.

1068781144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178650 (or 178646 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 1068781144 is about 32692.2184013260. The cubic root of 1068781144 is about 1022.4206075336.

The spelling of 1068781144 in words is "one billion, sixty-eight million, seven hundred eighty-one thousand, one hundred forty-four".