8756432945 has 16 divisors (see below), whose sum is σ = 11319590352. Its totient is φ = 6464240640.

The previous prime is 8756432939. The next prime is 8756432969. The reversal of 8756432945 is 5492346578.

It can be written as a sum of positive squares in 8 ways, for example, as 1931690401 + 6824742544 = 43951^2 + 82612^2 .

It is not a de Polignac number, because 8756432945 - 2²⁰ = 8755384369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203525 + ... + 242765.

It is an arithmetic number, because the mean of its divisors is an integer number (707474397).

Almost surely, 2^8756432945 is an apocalyptic number.

It is an amenable number.

8756432945 is a deficient number, since it is larger than the sum of its proper divisors (2563157407).

8756432945 is a wasteful number, since it uses less digits than its factorization.

8756432945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42692.

The product of its digits is 7257600, while the sum is 53.

The square root of 8756432945 is about 93575.8138890600. The cubic root of 8756432945 is about 2061.1475167074.

The spelling of 8756432945 in words is "eight billion, seven hundred fifty-six million, four hundred thirty-two thousand, nine hundred forty-five".