67321289612 has 6 divisors (see below), whose sum is σ = 117812256828. Its totient is φ = 33660644804.

The previous prime is 67321289599. The next prime is 67321289647. The reversal of 67321289612 is 21698212376.

It is a super-2 number, since 2×67321289612² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8415161198 + ... + 8415161205.

It is an arithmetic number, because the mean of its divisors is an integer number (19635376138).

Almost surely, 2^67321289612 is an apocalyptic number.

It is an amenable number.

67321289612 is a deficient number, since it is larger than the sum of its proper divisors (50490967216).

67321289612 is a wasteful number, since it uses less digits than its factorization.

67321289612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16830322407 (or 16830322405 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The spelling of 67321289612 in words is "sixty-seven billion, three hundred twenty-one million, two hundred eighty-nine thousand, six hundred twelve".