8281361365 has 8 divisors (see below), whose sum is σ = 10280310840. Its totient is φ = 6396637632.

The previous prime is 8281361339. The next prime is 8281361449. The reversal of 8281361365 is 5631631828.

It can be written as a sum of positive squares in 4 ways, for example, as 2472177841 + 5809183524 = 49721^2 + 76218^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8281361365 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28556274 + ... + 28556563.

It is an arithmetic number, because the mean of its divisors is an integer number (1285038855).

Almost surely, 2^8281361365 is an apocalyptic number.

It is an amenable number.

8281361365 is a deficient number, since it is larger than the sum of its proper divisors (1998949475).

8281361365 is a wasteful number, since it uses less digits than its factorization.

8281361365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57112871.

The product of its digits is 207360, while the sum is 43.

The square root of 8281361365 is about 91001.9855003175. The cubic root of 8281361365 is about 2023.1771526873.

The spelling of 8281361365 in words is "eight billion, two hundred eighty-one million, three hundred sixty-one thousand, three hundred sixty-five".