8756536321 has 8 divisors (see below), whose sum is σ = 9430855784. Its totient is φ = 8082322560.

The previous prime is 8756536319. The next prime is 8756536339. The reversal of 8756536321 is 1236356578.

It can be written as a sum of positive squares in 4 ways, for example, as 1612905921 + 7143630400 = 40161^2 + 84520^2 .

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

It is not a de Polignac number, because 8756536321 - 2¹ = 8756536319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8756536381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263575 + ... + 294931.

It is an arithmetic number, because the mean of its divisors is an integer number (1178856973).

Almost surely, 2^8756536321 is an apocalyptic number.

It is an amenable number.

8756536321 is a deficient number, since it is larger than the sum of its proper divisors (674319463).

8756536321 is a wasteful number, since it uses less digits than its factorization.

8756536321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52851.

The product of its digits is 907200, while the sum is 46.

The square root of 8756536321 is about 93576.3662523823. The cubic root of 8756536321 is about 2061.1556277860.

The spelling of 8756536321 in words is "eight billion, seven hundred fifty-six million, five hundred thirty-six thousand, three hundred twenty-one".