64582089589 has 4 divisors (see below), whose sum is σ = 64583060620. Its totient is φ = 64581118560.

The previous prime is 64582089581. The next prime is 64582089601. The reversal of 64582089589 is 98598028546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19450486225 + 45131603364 = 139465^2 + 212442^2 .

It is a cyclic number.

It is not a de Polignac number, because 64582089589 - 2³ = 64582089581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64582089589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64582089581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377784 + ... + 521425.

It is an arithmetic number, because the mean of its divisors is an integer number (16145765155).

Almost surely, 2^64582089589 is an apocalyptic number.

It is an amenable number.

64582089589 is a deficient number, since it is larger than the sum of its proper divisors (971031).

64582089589 is an equidigital number, since it uses as much as digits as its factorization.

64582089589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971030.

The product of its (nonzero) digits is 49766400, while the sum is 64.

The spelling of 64582089589 in words is "sixty-four billion, five hundred eighty-two million, eighty-nine thousand, five hundred eighty-nine".