1068744507601 has 3 divisors (see below), whose sum is σ = 1068745541403. Its totient is φ = 1068743473800.

The previous prime is 1068744507583. The next prime is 1068744507679. The reversal of 1068744507601 is 1067054478601.

It is a happy number.

The square root of 1068744507601 is 1033801.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 759252565201 + 309491942400 = 871351^2 + 556320^2 .

It is not a de Polignac number, because 1068744507601 - 2³⁵ = 1034384769233 is a prime.

It is a super-2 number, since 2×1068744507601² (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 (1068744507101) 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 2 ways as a sum of consecutive naturals, for example, 516901 + ... + 1550701.

It is an arithmetic number, because the mean of its divisors is an integer number (356248513801).

Almost surely, 2^{1068744507601} is an apocalyptic number.

1068744507601 is the 1033801-st square number.

1068744507601 is the 516901-st centered octagonal number.

It is an amenable number.

1068744507601 is a deficient number, since it is larger than the sum of its proper divisors (1033802).

1068744507601 is an frugal number, since it uses more digits than its factorization.

1068744507601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067602 (or 1033801 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

Multiplying 1068744507601 by its sum of digits (49), we get a square (52368480872449 = 7236607²).

The spelling of 1068744507601 in words is "one trillion, sixty-eight billion, seven hundred forty-four million, five hundred seven thousand, six hundred one".