67136988672 has 720 divisors, whose sum is σ = 226783484928. Its totient is φ = 19797073920.

The previous prime is 67136988647. The next prime is 67136988673. The reversal of 67136988672 is 27688963176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67136988673) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 651815373 + ... + 651815475.

Almost surely, 2^67136988672 is an apocalyptic number.

67136988672 is a gapful number since it is divisible by the number (62) 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 67136988672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113391742464).

67136988672 is an abundant number, since it is smaller than the sum of its proper divisors (159646496256).

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

67136988672 is a wasteful number, since it uses less digits than its factorization.

67136988672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 152 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 67136988672 in words is "sixty-seven billion, one hundred thirty-six million, nine hundred eighty-eight thousand, six hundred seventy-two".