67400000068 has 6 divisors (see below), whose sum is σ = 117950000126. Its totient is φ = 33700000032.

The previous prime is 67400000053. The next prime is 67400000069. The reversal of 67400000068 is 86000000476.

It can be written as a sum of positive squares in only one way, i.e., 67393198404 + 6801664 = 259602^2 + 2608^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67399999985 and 67400000039.

It is not an unprimeable number, because it can be changed into a prime (67400000069) 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 as a sum of consecutive naturals, namely, 8425000005 + ... + 8425000012.

Almost surely, 2^67400000068 is an apocalyptic number.

It is an amenable number.

67400000068 is a deficient number, since it is larger than the sum of its proper divisors (50550000058).

67400000068 is a wasteful number, since it uses less digits than its factorization.

67400000068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16850000021 (or 16850000019 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 67400000068 in words is "sixty-seven billion, four hundred million, sixty-eight", and thus it is an aban number.