67654464012 has 18 divisors (see below), whose sum is σ = 171015450788. Its totient is φ = 22551487992.

The previous prime is 67654464011. The next prime is 67654464041. The reversal of 67654464012 is 21046445676.

67654464012 is a `hidden beast` number, since 67 + 6 + 544 + 6 + 40 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×67654464012² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67654464011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 939645298 + ... + 939645369.

Almost surely, 2^67654464012 is an apocalyptic number.

It is an amenable number.

67654464012 is an abundant number, since it is smaller than the sum of its proper divisors (103360986776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67654464012 is a wasteful number, since it uses less digits than its factorization.

67654464012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879290677 (or 1879290672 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 67654464012 in words is "sixty-seven billion, six hundred fifty-four million, four hundred sixty-four thousand, twelve".