67000040040707 has 4 divisors (see below), whose sum is σ = 67070344385880. Its totient is φ = 66929735695536.

The previous prime is 67000040040679. The next prime is 67000040040737. The reversal of 67000040040707 is 70704004000076.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67000040040707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67000040040737) 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, 35152171157 + ... + 35152173062.

It is an arithmetic number, because the mean of its divisors is an integer number (16767586096470).

Almost surely, 2^{67000040040707} is an apocalyptic number.

67000040040707 is a deficient number, since it is larger than the sum of its proper divisors (70304345173).

67000040040707 is an equidigital number, since it uses as much as digits as its factorization.

67000040040707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70304345172.

The product of its (nonzero) digits is 32928, while the sum is 35.

The spelling of 67000040040707 in words is "sixty-seven trillion, forty million, forty thousand, seven hundred seven".