1068635897856 has 840 divisors, whose sum is σ = 3584298246480. Its totient is φ = 316466528256.

The previous prime is 1068635897827. The next prime is 1068635897863. The reversal of 1068635897856 is 6587985368601.

It is a happy number.

1068635897856 is a `hidden beast` number, since 106 + 8 + 6 + 358 + 97 + 85 + 6 = 666.

It is a super-2 number, since 2×1068635897856² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 3857891190 + ... + 3857891466.

It is an arithmetic number, because the mean of its divisors is an integer number (4267021722).

Almost surely, 2^{1068635897856} is an apocalyptic number.

1068635897856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1068635897856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1792149123240).

1068635897856 is an abundant number, since it is smaller than the sum of its proper divisors (2515662348624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1068635897856 is an frugal number, since it uses more digits than its factorization.

1068635897856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 522547200, while the sum is 72.

The spelling of 1068635897856 in words is "one trillion, sixty-eight billion, six hundred thirty-five million, eight hundred ninety-seven thousand, eight hundred fifty-six".