67400407007 has 4 divisors (see below), whose sum is σ = 67401403080. Its totient is φ = 67399410936.

The previous prime is 67400406947. The next prime is 67400407033. The reversal of 67400407007 is 70070400476.

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 67400407007 - 2¹⁰ = 67400405983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67400407307) 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, 388508 + ... + 534545.

It is an arithmetic number, because the mean of its divisors is an integer number (16850350770).

Almost surely, 2^67400407007 is an apocalyptic number.

67400407007 is a deficient number, since it is larger than the sum of its proper divisors (996073).

67400407007 is an equidigital number, since it uses as much as digits as its factorization.

67400407007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996072.

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

The spelling of 67400407007 in words is "sixty-seven billion, four hundred million, four hundred seven thousand, seven".