8643907445 has 8 divisors (see below), whose sum is σ = 10374414336. Its totient is φ = 6913975696.

The previous prime is 8643907439. The next prime is 8643907453. The reversal of 8643907445 is 5447093468.

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

It is a cyclic number.

It is not a de Polignac number, because 8643907445 - 2¹⁶ = 8643841909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8643907393 and 8643907402.

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, 109997 + ... + 171426.

It is an arithmetic number, because the mean of its divisors is an integer number (1296801792).

Almost surely, 2^8643907445 is an apocalyptic number.

It is an amenable number.

8643907445 is a deficient number, since it is larger than the sum of its proper divisors (1730506891).

8643907445 is a wasteful number, since it uses less digits than its factorization.

8643907445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287571.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The square root of 8643907445 is about 92972.6166406002. The cubic root of 8643907445 is about 2052.2804244360.

The spelling of 8643907445 in words is "eight billion, six hundred forty-three million, nine hundred seven thousand, four hundred forty-five".