67871617684 has 24 divisors (see below), whose sum is σ = 130633429248. Its totient is φ = 30658863840.

The previous prime is 67871617663. The next prime is 67871617687. The reversal of 67871617684 is 48671617876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67871617687) 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, 13882912 + ... + 13887799.

It is an arithmetic number, because the mean of its divisors is an integer number (5443059552).

Almost surely, 2^67871617684 is an apocalyptic number.

It is an amenable number.

67871617684 is a deficient number, since it is larger than the sum of its proper divisors (62761811564).

67871617684 is a wasteful number, since it uses less digits than its factorization.

67871617684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27770775 (or 27770773 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 61.

The spelling of 67871617684 in words is "sixty-seven billion, eight hundred seventy-one million, six hundred seventeen thousand, six hundred eighty-four".