67828990068 has 144 divisors (see below), whose sum is σ = 202843630080. Its totient is φ = 18698867712.

The previous prime is 67828990063. The next prime is 67828990079. The reversal of 67828990068 is 86009982876.

67828990068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 67828989987 and 67828990014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67828990063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17880780 + ... + 17884572.

It is an arithmetic number, because the mean of its divisors is an integer number (1408636320).

Almost surely, 2^67828990068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67828990068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101421815040).

67828990068 is an abundant number, since it is smaller than the sum of its proper divisors (135014640012).

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

67828990068 is a wasteful number, since it uses less digits than its factorization.

67828990068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286 (or 6281 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 67828990068 in words is "sixty-seven billion, eight hundred twenty-eight million, nine hundred ninety thousand, sixty-eight".