67400704067 has 4 divisors (see below), whose sum is σ = 67404863736. Its totient is φ = 67396544400.

The previous prime is 67400703977. The next prime is 67400704073. The reversal of 67400704067 is 76040700476.

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-67400704067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67400704097) 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, 2055434 + ... + 2087967.

It is an arithmetic number, because the mean of its divisors is an integer number (16851215934).

Almost surely, 2^67400704067 is an apocalyptic number.

67400704067 is a deficient number, since it is larger than the sum of its proper divisors (4159669).

67400704067 is a wasteful number, since it uses less digits than its factorization.

67400704067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159668.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 67400704067 in words is "sixty-seven billion, four hundred million, seven hundred four thousand, sixty-seven".