67939490880 has 896 divisors, whose sum is σ = 268824821760. Its totient is φ = 16071229440.

The previous prime is 67939490851. The next prime is 67939490881. The reversal of 67939490880 is 8809493976.

67939490880 is a `hidden beast` number, since 67 + 9 + 3 + 9 + 490 + 8 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (67939490881) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 195790867 + ... + 195791213.

Almost surely, 2^67939490880 is an apocalyptic number.

67939490880 is a gapful number since it is divisible by the number (60) 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 67939490880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134412410880).

67939490880 is an abundant number, since it is smaller than the sum of its proper divisors (200885330880).

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

67939490880 is a wasteful number, since it uses less digits than its factorization.

67939490880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 67939490880 in words is "sixty-seven billion, nine hundred thirty-nine million, four hundred ninety thousand, eight hundred eighty".