67990497792 has 320 divisors, whose sum is σ = 214090297344. Its totient is φ = 18771886080.

The previous prime is 67990497779. The next prime is 67990497811. The reversal of 67990497792 is 29779409976.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41942742 + ... + 41944362.

Almost surely, 2^67990497792 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 67990497792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107045148672).

67990497792 is an abundant number, since it is smaller than the sum of its proper divisors (146099799552).

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

67990497792 is a wasteful number, since it uses less digits than its factorization.

67990497792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1763 counting only the distinct ones).

The product of its (nonzero) digits is 108020304, while the sum is 69.

The spelling of 67990497792 in words is "sixty-seven billion, nine hundred ninety million, four hundred ninety-seven thousand, seven hundred ninety-two".