67888965144 has 256 divisors, whose sum is σ = 228241198080. Its totient is φ = 16251217920.

The previous prime is 67888965143. The next prime is 67888965161. The reversal of 67888965144 is 44156988876.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67888965143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18184302 + ... + 18188034.

It is an arithmetic number, because the mean of its divisors is an integer number (891567180).

Almost surely, 2^67888965144 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 67888965144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114120599040).

67888965144 is an abundant number, since it is smaller than the sum of its proper divisors (160352232936).

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

67888965144 is a wasteful number, since it uses less digits than its factorization.

67888965144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530 (or 4526 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 66.

The spelling of 67888965144 in words is "sixty-seven billion, eight hundred eighty-eight million, nine hundred sixty-five thousand, one hundred forty-four".