1068199318061 has 4 divisors (see below), whose sum is σ = 1068208677852. Its totient is φ = 1068189958272.

The previous prime is 1068199318049. The next prime is 1068199318063. The reversal of 1068199318061 is 1608139918601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 736002704836 + 332196613225 = 857906^2 + 576365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068199318061 is a prime.

It is a super-2 number, since 2×1068199318061² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1068199317994 and 1068199318012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068199318063) 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 3 ways as a sum of consecutive naturals, for example, 4506566 + ... + 4737671.

It is an arithmetic number, because the mean of its divisors is an integer number (267052169463).

Almost surely, 2^{1068199318061} is an apocalyptic number.

It is an amenable number.

1068199318061 is a deficient number, since it is larger than the sum of its proper divisors (9359791).

1068199318061 is an equidigital number, since it uses as much as digits as its factorization.

1068199318061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9359790.

The product of its (nonzero) digits is 559872, while the sum is 53.

The spelling of 1068199318061 in words is "one trillion, sixty-eight billion, one hundred ninety-nine million, three hundred eighteen thousand, sixty-one".