85807428462361 has 2 divisors, whose sum is σ = 85807428462362. Its totient is φ = 85807428462360.

The previous prime is 85807428462347. The next prime is 85807428462389. The reversal of 85807428462361 is 16326482470858.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44047645185600 + 41759783276761 = 6636840^2 + 6462181^2 .

It is a cyclic number.

It is not a de Polignac number, because 85807428462361 - 2¹³ = 85807428454169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85807428462293 and 85807428462302.

It is not a weakly prime, because it can be changed into another prime (85807428462311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42903714231180 + 42903714231181.

It is an arithmetic number, because the mean of its divisors is an integer number (42903714231181).

Almost surely, 2^{85807428462361} is an apocalyptic number.

It is an amenable number.

85807428462361 is a deficient number, since it is larger than the sum of its proper divisors (1).

85807428462361 is an equidigital number, since it uses as much as digits as its factorization.

85807428462361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123863040, while the sum is 64.

The spelling of 85807428462361 in words is "eighty-five trillion, eight hundred seven billion, four hundred twenty-eight million, four hundred sixty-two thousand, three hundred sixty-one".