67889933421 has 8 divisors (see below), whose sum is σ = 90717987264. Its totient is φ = 45160917600.

The previous prime is 67889933407. The next prime is 67889933431. The reversal of 67889933421 is 12433998876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67889933421 - 2⁶ = 67889933357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67889933431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24757905 + ... + 24760646.

It is an arithmetic number, because the mean of its divisors is an integer number (11339748408).

Almost surely, 2^67889933421 is an apocalyptic number.

It is an amenable number.

67889933421 is a deficient number, since it is larger than the sum of its proper divisors (22828053843).

67889933421 is a wasteful number, since it uses less digits than its factorization.

67889933421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49519011.

The product of its digits is 15676416, while the sum is 60.

The spelling of 67889933421 in words is "sixty-seven billion, eight hundred eighty-nine million, nine hundred thirty-three thousand, four hundred twenty-one".