67654321012 has 12 divisors (see below), whose sum is σ = 122214257536. Its totient is φ = 32735961720.

The previous prime is 67654321001. The next prime is 67654321027. The reversal of 67654321012 is 21012345676.

67654321012 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

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, 272799558 + ... + 272799805.

Almost surely, 2^67654321012 is an apocalyptic number.

67654321012 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

67654321012 is a deficient number, since it is larger than the sum of its proper divisors (54559936524).

67654321012 is a wasteful number, since it uses less digits than its factorization.

67654321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545599398 (or 545599396 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

Adding to 67654321012 its reverse (21012345676), we get a palindrome (88666666688).

The spelling of 67654321012 in words is "sixty-seven billion, six hundred fifty-four million, three hundred twenty-one thousand, twelve".