869475240589 has 2 divisors, whose sum is σ = 869475240590. Its totient is φ = 869475240588.

The previous prime is 869475240583. The next prime is 869475240637. The reversal of 869475240589 is 985042574968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 562485000100 + 306990240489 = 749990^2 + 554067^2 .

It is a cyclic number.

It is not a de Polignac number, because 869475240589 - 2⁷ = 869475240461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869475240583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434737620294 + 434737620295.

It is an arithmetic number, because the mean of its divisors is an integer number (434737620295).

Almost surely, 2^869475240589 is an apocalyptic number.

It is an amenable number.

869475240589 is a deficient number, since it is larger than the sum of its proper divisors (1).

869475240589 is an equidigital number, since it uses as much as digits as its factorization.

869475240589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174182400, while the sum is 67.

The spelling of 869475240589 in words is "eight hundred sixty-nine billion, four hundred seventy-five million, two hundred forty thousand, five hundred eighty-nine".