67108731212 has 24 divisors (see below), whose sum is σ = 117983916960. Its totient is φ = 33399118080.

The previous prime is 67108731203. The next prime is 67108731247. The reversal of 67108731212 is 21213780176.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4845137 + ... + 4858967.

It is an arithmetic number, because the mean of its divisors is an integer number (4915996540).

Almost surely, 2^67108731212 is an apocalyptic number.

It is an amenable number.

67108731212 is a deficient number, since it is larger than the sum of its proper divisors (50875185748).

67108731212 is a wasteful number, since it uses less digits than its factorization.

67108731212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19361 (or 19359 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 67108731212 in words is "sixty-seven billion, one hundred eight million, seven hundred thirty-one thousand, two hundred twelve".