8545872005761 has 2 divisors, whose sum is σ = 8545872005762. Its totient is φ = 8545872005760.

The previous prime is 8545872005731. The next prime is 8545872005833. The reversal of 8545872005761 is 1675002785458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7929067539600 + 616804466161 = 2815860^2 + 785369^2 .

It is a cyclic number.

It is not a de Polignac number, because 8545872005761 - 2¹⁷ = 8545871874689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8545872005696 and 8545872005705.

It is not a weakly prime, because it can be changed into another prime (8545872005701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4272936002880 + 4272936002881.

It is an arithmetic number, because the mean of its divisors is an integer number (4272936002881).

Almost surely, 2^{8545872005761} is an apocalyptic number.

It is an amenable number.

8545872005761 is a deficient number, since it is larger than the sum of its proper divisors (1).

8545872005761 is an equidigital number, since it uses as much as digits as its factorization.

8545872005761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816000, while the sum is 58.

The spelling of 8545872005761 in words is "eight trillion, five hundred forty-five billion, eight hundred seventy-two million, five thousand, seven hundred sixty-one".