67778897112 has 48 divisors (see below), whose sum is σ = 188045119080. Its totient is φ = 22041916800.

The previous prime is 67778897111. The next prime is 67778897113. The reversal of 67778897112 is 21179887776.

It is an interprime number because it is at equal distance from previous prime (67778897111) and next prime (67778897113).

It is a self number, because there is not a number n which added to its sum of digits gives 67778897112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67778897111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11477214 + ... + 11483117.

Almost surely, 2^67778897112 is an apocalyptic number.

It is an amenable number.

67778897112 is an abundant number, since it is smaller than the sum of its proper divisors (120266221968).

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

67778897112 is a wasteful number, since it uses less digits than its factorization.

67778897112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22960384 (or 22960377 counting only the distinct ones).

The product of its digits is 16595712, while the sum is 63.

The spelling of 67778897112 in words is "sixty-seven billion, seven hundred seventy-eight million, eight hundred ninety-seven thousand, one hundred twelve".