67340738409 has 32 divisors (see below), whose sum is σ = 105887548416. Its totient is φ = 37262877120.

The previous prime is 67340738389. The next prime is 67340738503. The reversal of 67340738409 is 90483704376.

It is a happy number.

It is not a de Polignac number, because 67340738409 - 2¹¹ = 67340736361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67340738009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41427 + ... + 369320.

It is an arithmetic number, because the mean of its divisors is an integer number (3308985888).

Almost surely, 2^67340738409 is an apocalyptic number.

It is an amenable number.

67340738409 is a deficient number, since it is larger than the sum of its proper divisors (38546810007).

67340738409 is a wasteful number, since it uses less digits than its factorization.

67340738409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411005.

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 67340738409 in words is "sixty-seven billion, three hundred forty million, seven hundred thirty-eight thousand, four hundred nine".