8504772865 has 8 divisors (see below), whose sum is σ = 10206543528. Its totient is φ = 6803274240.

The previous prime is 8504772847. The next prime is 8504772907. The reversal of 8504772865 is 5682774058.

It can be written as a sum of positive squares in 4 ways, for example, as 1546376976 + 6958395889 = 39324^2 + 83417^2 .

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

It is not a de Polignac number, because 8504772865 - 2¹¹ = 8504770817 is a prime.

It is a super-2 number, since 2×8504772865² (a number of 21 digits) contains 22 as substring.

It is a Duffinian 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, 8625 + ... + 130705.

It is an arithmetic number, because the mean of its divisors is an integer number (1275817941).

Almost surely, 2^8504772865 is an apocalyptic number.

It is an amenable number.

8504772865 is a deficient number, since it is larger than the sum of its proper divisors (1701770663).

8504772865 is a wasteful number, since it uses less digits than its factorization.

8504772865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136019.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The square root of 8504772865 is about 92221.3254350641. The cubic root of 8504772865 is about 2041.2094635782.

The spelling of 8504772865 in words is "eight billion, five hundred four million, seven hundred seventy-two thousand, eight hundred sixty-five".