873061385063761 has 2 divisors, whose sum is σ = 873061385063762. Its totient is φ = 873061385063760.

The previous prime is 873061385063719. The next prime is 873061385063767. The reversal of 873061385063761 is 167360583160378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 798428718503361 + 74632666560400 = 28256481^2 + 8639020^2 .

It is a cyclic number.

It is not a de Polignac number, because 873061385063761 - 2²¹ = 873061382966609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 873061385063693 and 873061385063702.

It is not a weakly prime, because it can be changed into another prime (873061385063767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436530692531880 + 436530692531881.

It is an arithmetic number, because the mean of its divisors is an integer number (436530692531881).

Almost surely, 2^{873061385063761} is an apocalyptic number.

It is an amenable number.

873061385063761 is a deficient number, since it is larger than the sum of its proper divisors (1).

873061385063761 is an equidigital number, since it uses as much as digits as its factorization.

873061385063761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 873061385063761 in words is "eight hundred seventy-three trillion, sixty-one billion, three hundred eighty-five million, sixty-three thousand, seven hundred sixty-one".