64582323349 has 4 divisors (see below), whose sum is σ = 68381283564. Its totient is φ = 60783363136.

The previous prime is 64582323263. The next prime is 64582323427. The reversal of 64582323349 is 94332328546.

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 36474124324 + 28108199025 = 190982^2 + 167655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64582323349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64582323049) 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, 1899480082 + ... + 1899480115.

It is an arithmetic number, because the mean of its divisors is an integer number (17095320891).

Almost surely, 2^64582323349 is an apocalyptic number.

It is an amenable number.

64582323349 is a deficient number, since it is larger than the sum of its proper divisors (3798960215).

64582323349 is a wasteful number, since it uses less digits than its factorization.

64582323349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798960214.

The product of its digits is 3732480, while the sum is 49.

The spelling of 64582323349 in words is "sixty-four billion, five hundred eighty-two million, three hundred twenty-three thousand, three hundred forty-nine".