67407340667 has 4 divisors (see below), whose sum is σ = 67414616016. Its totient is φ = 67400065320.

The previous prime is 67407340661. The next prime is 67407340673. The reversal of 67407340667 is 76604370476.

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

It is an interprime number because it is at equal distance from previous prime (67407340661) and next prime (67407340673).

It is a cyclic number.

It is not a de Polignac number, because 67407340667 - 2¹² = 67407336571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67407340661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3623759 + ... + 3642312.

It is an arithmetic number, because the mean of its divisors is an integer number (16853654004).

Almost surely, 2^67407340667 is an apocalyptic number.

67407340667 is a deficient number, since it is larger than the sum of its proper divisors (7275349).

67407340667 is an equidigital number, since it uses as much as digits as its factorization.

67407340667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275348.

The product of its (nonzero) digits is 3556224, while the sum is 50.

The spelling of 67407340667 in words is "sixty-seven billion, four hundred seven million, three hundred forty thousand, six hundred sixty-seven".