67516342812 has 36 divisors (see below), whose sum is σ = 173464125016. Its totient is φ = 22136505120.

The previous prime is 67516342799. The next prime is 67516342819. The reversal of 67516342812 is 21824361576.

67516342812 is a `hidden beast` number, since 6 + 7 + 5 + 1 + 634 + 2 + 8 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67516342819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15370378 + ... + 15374769.

Almost surely, 2^67516342812 is an apocalyptic number.

It is an amenable number.

67516342812 is an abundant number, since it is smaller than the sum of its proper divisors (105947782204).

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

67516342812 is a wasteful number, since it uses less digits than its factorization.

67516342812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30745218 (or 30745213 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 67516342812 in words is "sixty-seven billion, five hundred sixteen million, three hundred forty-two thousand, eight hundred twelve".