8438452565 has 8 divisors (see below), whose sum is σ = 10126758048. Its totient is φ = 6750352080.

The previous prime is 8438452559. The next prime is 8438452579. The reversal of 8438452565 is 5652548348.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8438452565 - 2¹⁶ = 8438387029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62114 + ... + 143996.

It is an arithmetic number, because the mean of its divisors is an integer number (1265844756).

Almost surely, 2^8438452565 is an apocalyptic number.

It is an amenable number.

8438452565 is a deficient number, since it is larger than the sum of its proper divisors (1688305483).

8438452565 is a wasteful number, since it uses less digits than its factorization.

8438452565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102499.

The product of its digits is 4608000, while the sum is 50.

The square root of 8438452565 is about 91861.0503151363. The cubic root of 8438452565 is about 2035.8898216882.

The spelling of 8438452565 in words is "eight billion, four hundred thirty-eight million, four hundred fifty-two thousand, five hundred sixty-five".