67354066812 has 24 divisors (see below), whose sum is σ = 162578782800. Its totient is φ = 21677170816.

The previous prime is 67354066811. The next prime is 67354066889. The reversal of 67354066812 is 21866045376.

It is a super-2 number, since 2×67354066812² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67354066811) 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, 96772737 + ... + 96773432.

It is an arithmetic number, because the mean of its divisors is an integer number (6774115950).

Almost surely, 2^67354066812 is an apocalyptic number.

It is an amenable number.

67354066812 is an abundant number, since it is smaller than the sum of its proper divisors (95224715988).

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

67354066812 is a wasteful number, since it uses less digits than its factorization.

67354066812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193546205 (or 193546203 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 67354066812 in words is "sixty-seven billion, three hundred fifty-four million, sixty-six thousand, eight hundred twelve".