468911609 has 2 divisors, whose sum is σ = 468911610. Its totient is φ = 468911608.

The previous prime is 468911593. The next prime is 468911647. The reversal of 468911609 is 906119864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441840400 + 27071209 = 21020^2 + 5203^2 .

It is a cyclic number.

It is not a de Polignac number, because 468911609 - 2⁴ = 468911593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 468911609.

It is not a weakly prime, because it can be changed into another prime (468917609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234455804 + 234455805.

It is an arithmetic number, because the mean of its divisors is an integer number (234455805).

Almost surely, 2^468911609 is an apocalyptic number.

It is an amenable number.

468911609 is a deficient number, since it is larger than the sum of its proper divisors (1).

468911609 is an equidigital number, since it uses as much as digits as its factorization.

468911609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 468911609 is about 21654.3669729688. The cubic root of 468911609 is about 776.8973885401.

The spelling of 468911609 in words is "four hundred sixty-eight million, nine hundred eleven thousand, six hundred nine".