426874951766717 has 16 divisors (see below), whose sum is σ = 430240556600880. Its totient is φ = 423513026108928.

The previous prime is 426874951766689. The next prime is 426874951766771. The reversal of 426874951766717 is 717667159478624.

It can be written as a sum of positive squares in 8 ways, for example, as 79553359494361 + 347321592272356 = 8919269^2 + 18636566^2 .

It is a cyclic number.

It is not a de Polignac number, because 426874951766717 - 2²² = 426874947572413 is a prime.

It is a super-3 number, since 3×426874951766717³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426874951756717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2015461259 + ... + 2015673047.

It is an arithmetic number, because the mean of its divisors is an integer number (26890034787555).

Almost surely, 2^{426874951766717} is an apocalyptic number.

It is an amenable number.

426874951766717 is a deficient number, since it is larger than the sum of its proper divisors (3365604834163).

426874951766717 is a wasteful number, since it uses less digits than its factorization.

426874951766717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220400.

The product of its digits is 5974456320, while the sum is 80.

The spelling of 426874951766717 in words is "four hundred twenty-six trillion, eight hundred seventy-four billion, nine hundred fifty-one million, seven hundred sixty-six thousand, seven hundred seventeen".