67885409880 has 320 divisors, whose sum is σ = 238658270400. Its totient is φ = 17274470400.

The previous prime is 67885409747. The next prime is 67885409897. The reversal of 67885409880 is 8890458876.

67885409880 is a `hidden beast` number, since 6 + 7 + 8 + 8 + 540 + 9 + 8 + 80 = 666.

67885409880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×67885409880² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 42401080 + ... + 42402680.

It is an arithmetic number, because the mean of its divisors is an integer number (745807095).

Almost surely, 2^67885409880 is an apocalyptic number.

67885409880 is a gapful number since it is divisible by the number (60) 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 67885409880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119329135200).

67885409880 is an abundant number, since it is smaller than the sum of its proper divisors (170772860520).

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

67885409880 is a wasteful number, since it uses less digits than its factorization.

67885409880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216 (or 2203 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 63.

The spelling of 67885409880 in words is "sixty-seven billion, eight hundred eighty-five million, four hundred nine thousand, eight hundred eighty".