8221759365 has 16 divisors (see below), whose sum is σ = 13275504000. Its totient is φ = 4344708672.

The previous prime is 8221759361. The next prime is 8221759369. The reversal of 8221759365 is 5639571228.

It is an interprime number because it is at equal distance from previous prime (8221759361) and next prime (8221759369).

It is not a de Polignac number, because 8221759365 - 2² = 8221759361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221759361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2512665 + ... + 2515934.

It is an arithmetic number, because the mean of its divisors is an integer number (829719000).

Almost surely, 2^8221759365 is an apocalyptic number.

It is an amenable number.

8221759365 is a deficient number, since it is larger than the sum of its proper divisors (5053744635).

8221759365 is a wasteful number, since it uses less digits than its factorization.

8221759365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028716.

The product of its digits is 907200, while the sum is 48.

The square root of 8221759365 is about 90673.9177768337. The cubic root of 8221759365 is about 2018.3117748407.

The spelling of 8221759365 in words is "eight billion, two hundred twenty-one million, seven hundred fifty-nine thousand, three hundred sixty-five".