4521164689 has 2 divisors, whose sum is σ = 4521164690. Its totient is φ = 4521164688.

The previous prime is 4521164653. The next prime is 4521164729. The reversal of 4521164689 is 9864611254.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3366320400 + 1154844289 = 58020^2 + 33983^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521164689 - 2²¹ = 4519067537 is a prime.

It is not a weakly prime, because it can be changed into another prime (4521164189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260582344 + 2260582345.

It is an arithmetic number, because the mean of its divisors is an integer number (2260582345).

Almost surely, 2^4521164689 is an apocalyptic number.

It is an amenable number.

4521164689 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521164689 is an equidigital number, since it uses as much as digits as its factorization.

4521164689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The square root of 4521164689 is about 67239.6065500089. The cubic root of 4521164689 is about 1653.5478832369.

The spelling of 4521164689 in words is "four billion, five hundred twenty-one million, one hundred sixty-four thousand, six hundred eighty-nine".