1068502611856 has 15 divisors (see below), whose sum is σ = 2070231821553. Its totient is φ = 534249238560.

The previous prime is 1068502611851. The next prime is 1068502611863. The reversal of 1068502611856 is 6581162058601.

It is a happy number.

The square root of 1068502611856 is 1033684.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 113895450256 + 954607161600 = 337484^2 + 977040^2 .

It is a super-2 number, since 2×1068502611856² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1068502611851) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4005526 + ... + 4263946.

Almost surely, 2^{1068502611856} is an apocalyptic number.

1068502611856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1068502611856 is the 1033684-th square number.

It is an amenable number.

1068502611856 is a deficient number, since it is larger than the sum of its proper divisors (1001729209697).

1068502611856 is an frugal number, since it uses more digits than its factorization.

1068502611856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516850 (or 258423 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 49.

Multiplying 1068502611856 by its sum of digits (49), we get a square (52356627980944 = 7235788²).

The spelling of 1068502611856 in words is "one trillion, sixty-eight billion, five hundred two million, six hundred eleven thousand, eight hundred fifty-six".