1068421890672 has 240 divisors, whose sum is σ = 3269359358720. Its totient is φ = 336846988800.

The previous prime is 1068421890637. The next prime is 1068421890673. The reversal of 1068421890672 is 2760981248601.

It is a happy number.

1068421890672 is a `hidden beast` number, since 1 + 0 + 68 + 421 + 8 + 90 + 6 + 72 = 666.

It is a super-3 number, since 3×1068421890672³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068421890673) 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 47 ways as a sum of consecutive naturals, for example, 46601772 + ... + 46624692.

Almost surely, 2^{1068421890672} is an apocalyptic number.

1068421890672 is a gapful number since it is divisible by the number (12) 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 1068421890672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1634679679360).

1068421890672 is an abundant number, since it is smaller than the sum of its proper divisors (2200937468048).

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

1068421890672 is a wasteful number, since it uses less digits than its factorization.

1068421890672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23594 (or 23576 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 1068421890672 in words is "one trillion, sixty-eight billion, four hundred twenty-one million, eight hundred ninety thousand, six hundred seventy-two".