67819274688 has 224 divisors, whose sum is σ = 199745925120. Its totient is φ = 20134333440.

The previous prime is 67819274681. The next prime is 67819274707. The reversal of 67819274688 is 88647291876.

It is a happy number.

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 (67819274681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45730395 + ... + 45731877.

It is an arithmetic number, because the mean of its divisors is an integer number (891722880).

Almost surely, 2^67819274688 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 67819274688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99872962560).

67819274688 is an abundant number, since it is smaller than the sum of its proper divisors (131926650432).

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

67819274688 is a wasteful number, since it uses less digits than its factorization.

67819274688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1925 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 66.

The spelling of 67819274688 in words is "sixty-seven billion, eight hundred nineteen million, two hundred seventy-four thousand, six hundred eighty-eight".