404642060717 has 4 divisors (see below), whose sum is σ = 405682272060. Its totient is φ = 403601849376.

The previous prime is 404642060701. The next prime is 404642060723. The reversal of 404642060717 is 717060246404.

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 118701609961 + 285940450756 = 344531^2 + 534734^2 .

It is a cyclic number.

It is not a de Polignac number, because 404642060717 - 2⁴ = 404642060701 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 (404612060717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520105088 + ... + 520105865.

It is an arithmetic number, because the mean of its divisors is an integer number (101420568015).

Almost surely, 2^404642060717 is an apocalyptic number.

It is an amenable number.

404642060717 is a deficient number, since it is larger than the sum of its proper divisors (1040211343).

404642060717 is a wasteful number, since it uses less digits than its factorization.

404642060717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040211342.

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 404642060717 in words is "four hundred four billion, six hundred forty-two million, sixty thousand, seven hundred seventeen".