1068521545384 has 16 divisors (see below), whose sum is σ = 2121329538900. Its totient is φ = 502833668352.

The previous prime is 1068521545381. The next prime is 1068521545423. The reversal of 1068521545384 is 4835451258601.

It can be written as a sum of positive squares in 2 ways, for example, as 1068060240900 + 461304484 = 1033470^2 + 21478^2 .

It is a super-2 number, since 2×1068521545384² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068521545381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928387899 + ... + 3928388170.

Almost surely, 2^{1068521545384} is an apocalyptic number.

It is an amenable number.

1068521545384 is a deficient number, since it is larger than the sum of its proper divisors (1052807993516).

1068521545384 is a wasteful number, since it uses less digits than its factorization.

1068521545384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7856776092 (or 7856776088 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 52.

The spelling of 1068521545384 in words is "one trillion, sixty-eight billion, five hundred twenty-one million, five hundred forty-five thousand, three hundred eighty-four".