67137776812 has 24 divisors (see below), whose sum is σ = 119470808240. Its totient is φ = 33003754560.

The previous prime is 67137776809. The next prime is 67137776831. The reversal of 67137776812 is 21867773176.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493003 + ... + 614269.

Almost surely, 2^67137776812 is an apocalyptic number.

It is an amenable number.

67137776812 is a deficient number, since it is larger than the sum of its proper divisors (52333031428).

67137776812 is a wasteful number, since it uses less digits than its factorization.

67137776812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123601 (or 123599 counting only the distinct ones).

The product of its digits is 4148928, while the sum is 55.

The spelling of 67137776812 in words is "sixty-seven billion, one hundred thirty-seven million, seven hundred seventy-six thousand, eight hundred twelve".