8325478065 has 16 divisors (see below), whose sum is σ = 13330252800. Its totient is φ = 4437092352.

The previous prime is 8325478043. The next prime is 8325478069. The reversal of 8325478065 is 5608745238.

It is not a de Polignac number, because 8325478065 - 2²¹ = 8323380913 is a prime.

It is a super-2 number, since 2×8325478065² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8325478069) 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, 175825 + ... + 218094.

It is an arithmetic number, because the mean of its divisors is an integer number (833140800).

Almost surely, 2^8325478065 is an apocalyptic number.

It is an amenable number.

8325478065 is a deficient number, since it is larger than the sum of its proper divisors (5004774735).

8325478065 is a wasteful number, since it uses less digits than its factorization.

8325478065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395336.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The square root of 8325478065 is about 91244.0576969262. The cubic root of 8325478065 is about 2026.7634338745.

The spelling of 8325478065 in words is "eight billion, three hundred twenty-five million, four hundred seventy-eight thousand, sixty-five".