1068745642 has 16 divisors (see below), whose sum is σ = 1677040200. Its totient is φ = 510146560.

The previous prime is 1068745637. The next prime is 1068745721. The reversal of 1068745642 is 2465478601.

It can be written as a sum of positive squares in 4 ways, for example, as 1040772121 + 27973521 = 32261^2 + 5289^2 .

It is a super-2 number, since 2×1068745642² = 2284434494587984328, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 98359 + ... + 108682.

Almost surely, 2^1068745642 is an apocalyptic number.

1068745642 is a deficient number, since it is larger than the sum of its proper divisors (608294558).

1068745642 is a wasteful number, since it uses less digits than its factorization.

1068745642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207161.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 1068745642 is about 32691.6754235692. The cubic root of 1068745642 is about 1022.4092867319.

The spelling of 1068745642 in words is "one billion, sixty-eight million, seven hundred forty-five thousand, six hundred forty-two".