67131321288 has 16 divisors (see below), whose sum is σ = 167828303280. Its totient is φ = 22377107088.

The previous prime is 67131321253. The next prime is 67131321289. The reversal of 67131321288 is 88212313176.

It is a super-2 number, since 2×67131321288² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67131321289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1398569170 + ... + 1398569217.

It is an arithmetic number, because the mean of its divisors is an integer number (10489268955).

Almost surely, 2^67131321288 is an apocalyptic number.

It is an amenable number.

67131321288 is an abundant number, since it is smaller than the sum of its proper divisors (100696981992).

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

67131321288 is a wasteful number, since it uses less digits than its factorization.

67131321288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797138396 (or 2797138392 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The spelling of 67131321288 in words is "sixty-seven billion, one hundred thirty-one million, three hundred twenty-one thousand, two hundred eighty-eight".