17020420500673 has 4 divisors (see below), whose sum is σ = 17026505744980. Its totient is φ = 17014335256368.

The previous prime is 17020420500619. The next prime is 17020420500679. The reversal of 17020420500673 is 37600502402071.

It is a happy number.

17020420500673 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 9795597963264 + 7224822537409 = 3129792^2 + 2687903^2 .

It is a cyclic number.

It is not a de Polignac number, because 17020420500673 - 2⁴¹ = 14821397245121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17020420500679) 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, 3042617958 + ... + 3042623551.

It is an arithmetic number, because the mean of its divisors is an integer number (4256626436245).

Almost surely, 2^{17020420500673} is an apocalyptic number.

It is an amenable number.

17020420500673 is a deficient number, since it is larger than the sum of its proper divisors (6085244307).

17020420500673 is an equidigital number, since it uses as much as digits as its factorization.

17020420500673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6085244306.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 17020420500673 in words is "seventeen trillion, twenty billion, four hundred twenty million, five hundred thousand, six hundred seventy-three".