673400670017 has 4 divisors (see below), whose sum is σ = 674190120660. Its totient is φ = 672611219376.

The previous prime is 673400669999. The next prime is 673400670031. The reversal of 673400670017 is 710076004376.

673400670017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 109100732416 + 564299937601 = 330304^2 + 751199^2 .

It is a cyclic number.

It is not a de Polignac number, because 673400670017 - 2¹⁴ = 673400653633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673400670097) 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, 394724042 + ... + 394725747.

It is an arithmetic number, because the mean of its divisors is an integer number (168547530165).

Almost surely, 2^673400670017 is an apocalyptic number.

It is an amenable number.

673400670017 is a deficient number, since it is larger than the sum of its proper divisors (789450643).

673400670017 is an equidigital number, since it uses as much as digits as its factorization.

673400670017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789450642.

The product of its (nonzero) digits is 148176, while the sum is 41.

The spelling of 673400670017 in words is "six hundred seventy-three billion, four hundred million, six hundred seventy thousand, seventeen".