67340040040 has 128 divisors (see below), whose sum is σ = 187625813760. Its totient is φ = 21181077504.

The previous prime is 67340040037. The next prime is 67340040073. The reversal of 67340040040 is 4004004376.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 67340039990 and 67340040008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 536572 + ... + 650068.

It is an arithmetic number, because the mean of its divisors is an integer number (1465826670).

Almost surely, 2^67340040040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67340040040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93812906880).

67340040040 is an abundant number, since it is smaller than the sum of its proper divisors (120285773720).

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

67340040040 is a wasteful number, since it uses less digits than its factorization.

67340040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113691 (or 113687 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The spelling of 67340040040 in words is "sixty-seven billion, three hundred forty million, forty thousand, forty".