870171548461 has 2 divisors, whose sum is σ = 870171548462. Its totient is φ = 870171548460.

The previous prime is 870171548443. The next prime is 870171548473. The reversal of 870171548461 is 164845171078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 815102008900 + 55069539561 = 902830^2 + 234669^2 .

It is a cyclic number.

It is not a de Polignac number, because 870171548461 - 2⁵ = 870171548429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 870171548399 and 870171548408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870171548761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435085774230 + 435085774231.

It is an arithmetic number, because the mean of its divisors is an integer number (435085774231).

Almost surely, 2^870171548461 is an apocalyptic number.

It is an amenable number.

870171548461 is a deficient number, since it is larger than the sum of its proper divisors (1).

870171548461 is an equidigital number, since it uses as much as digits as its factorization.

870171548461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 870171548461 in words is "eight hundred seventy billion, one hundred seventy-one million, five hundred forty-eight thousand, four hundred sixty-one".