859340240617 has 2 divisors, whose sum is σ = 859340240618. Its totient is φ = 859340240616.

The previous prime is 859340240599. The next prime is 859340240663. The reversal of 859340240617 is 716042043958.

It is a happy number.

859340240617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705002046736 + 154338193881 = 839644^2 + 392859^2 .

It is a cyclic number.

It is not a de Polignac number, because 859340240617 - 2¹⁵ = 859340207849 is a prime.

It is not a weakly prime, because it can be changed into another prime (859340246617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429670120308 + 429670120309.

It is an arithmetic number, because the mean of its divisors is an integer number (429670120309).

It is a 1-persistent number, because it is pandigital, but 2⋅859340240617 = 1718680481234 is not.

Almost surely, 2^859340240617 is an apocalyptic number.

It is an amenable number.

859340240617 is a deficient number, since it is larger than the sum of its proper divisors (1).

859340240617 is an equidigital number, since it uses as much as digits as its factorization.

859340240617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 859340240617 in words is "eight hundred fifty-nine billion, three hundred forty million, two hundred forty thousand, six hundred seventeen".