869475240461 has 2 divisors, whose sum is σ = 869475240462. Its totient is φ = 869475240460.

The previous prime is 869475240457. The next prime is 869475240463. The reversal of 869475240461 is 164042574968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820310604100 + 49164636361 = 905710^2 + 221731^2 .

It is a cyclic number.

It is not a de Polignac number, because 869475240461 - 2² = 869475240457 is a prime.

Together with 869475240463, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 869475240397 and 869475240406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869475240463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434737620230 + 434737620231.

It is an arithmetic number, because the mean of its divisors is an integer number (434737620231).

Almost surely, 2^869475240461 is an apocalyptic number.

It is an amenable number.

869475240461 is a deficient number, since it is larger than the sum of its proper divisors (1).

869475240461 is an equidigital number, since it uses as much as digits as its factorization.

869475240461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 869475240461 in words is "eight hundred sixty-nine billion, four hundred seventy-five million, two hundred forty thousand, four hundred sixty-one".