67340007305 has 4 divisors (see below), whose sum is σ = 80808008772. Its totient is φ = 53872005840.

The previous prime is 67340007239. The next prime is 67340007313. The reversal of 67340007305 is 50370004376.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42624079936 + 24715927369 = 206456^2 + 157213^2 .

It is not a de Polignac number, because 67340007305 - 2¹² = 67340003209 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 6734000726 + ... + 6734000735.

It is an arithmetic number, because the mean of its divisors is an integer number (20202002193).

Almost surely, 2^67340007305 is an apocalyptic number.

It is an amenable number.

67340007305 is a deficient number, since it is larger than the sum of its proper divisors (13468001467).

67340007305 is a wasteful number, since it uses less digits than its factorization.

67340007305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13468001466.

The product of its (nonzero) digits is 52920, while the sum is 35.

The spelling of 67340007305 in words is "sixty-seven billion, three hundred forty million, seven thousand, three hundred five".