67400403400067 has 4 divisors (see below), whose sum is σ = 67400443070640. Its totient is φ = 67400363729496.

The previous prime is 67400403400063. The next prime is 67400403400081. The reversal of 67400403400067 is 76000430400476.

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

It is a cyclic number.

It is not a de Polignac number, because 67400403400067 - 2² = 67400403400063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67400403399997 and 67400403400033.

It is not an unprimeable number, because it can be changed into a prime (67400403400063) 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, 17167148 + ... + 20724665.

It is an arithmetic number, because the mean of its divisors is an integer number (16850110767660).

Almost surely, 2^{67400403400067} is an apocalyptic number.

67400403400067 is a deficient number, since it is larger than the sum of its proper divisors (39670573).

67400403400067 is a wasteful number, since it uses less digits than its factorization.

67400403400067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39670572.

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 67400403400067 in words is "sixty-seven trillion, four hundred billion, four hundred three million, four hundred thousand, sixty-seven".