8478340265 has 16 divisors (see below), whose sum is σ = 10711758720. Its totient is φ = 6424323840.

The previous prime is 8478340261. The next prime is 8478340271. The reversal of 8478340265 is 5620438748.

It is not a de Polignac number, because 8478340265 - 2² = 8478340261 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8478340261) 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, 816305 + ... + 826625.

It is an arithmetic number, because the mean of its divisors is an integer number (669484920).

Almost surely, 2^8478340265 is an apocalyptic number.

It is an amenable number.

8478340265 is a deficient number, since it is larger than the sum of its proper divisors (2233418455).

8478340265 is a wasteful number, since it uses less digits than its factorization.

8478340265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18992.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The square root of 8478340265 is about 92077.9032395938. The cubic root of 8478340265 is about 2039.0925947260.

The spelling of 8478340265 in words is "eight billion, four hundred seventy-eight million, three hundred forty thousand, two hundred sixty-five".