67071138887632 has 20 divisors (see below), whose sum is σ = 141763998103776. Its totient is φ = 30486881312480.

The previous prime is 67071138887591. The next prime is 67071138887647. The reversal of 67071138887632 is 23678883117076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190543008028 + ... + 190543008379.

Almost surely, 2^{67071138887632} is an apocalyptic number.

It is an amenable number.

67071138887632 is an abundant number, since it is smaller than the sum of its proper divisors (74692859216144).

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

67071138887632 is a wasteful number, since it uses less digits than its factorization.

67071138887632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381086016426 (or 381086016420 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 67.

The spelling of 67071138887632 in words is "sixty-seven trillion, seventy-one billion, one hundred thirty-eight million, eight hundred eighty-seven thousand, six hundred thirty-two".