67326432140 has 96 divisors (see below), whose sum is σ = 164688201216. Its totient is φ = 22873213440.

The previous prime is 67326432127. The next prime is 67326432157. The reversal of 67326432140 is 4123462376.

It is a junction number, because it is equal to n+sod(n) for n = 67326432094 and 67326432103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62864 + ... + 372296.

It is an arithmetic number, because the mean of its divisors is an integer number (1715502096).

Almost surely, 2^67326432140 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 67326432140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82344100608).

67326432140 is an abundant number, since it is smaller than the sum of its proper divisors (97361769076).

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

67326432140 is a wasteful number, since it uses less digits than its factorization.

67326432140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309519 (or 309517 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 67326432140 in words is "sixty-seven billion, three hundred twenty-six million, four hundred thirty-two thousand, one hundred forty".