8425043165 has 32 divisors (see below), whose sum is σ = 12621014784. Its totient is φ = 5245194240.

The previous prime is 8425043161. The next prime is 8425043201. The reversal of 8425043165 is 5613405248.

It is not a de Polignac number, because 8425043165 - 2² = 8425043161 is a prime.

It is a super-2 number, since 2×8425043165² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8425043161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293117 + ... + 320573.

It is an arithmetic number, because the mean of its divisors is an integer number (394406712).

Almost surely, 2^8425043165 is an apocalyptic number.

It is an amenable number.

8425043165 is a deficient number, since it is larger than the sum of its proper divisors (4195971619).

8425043165 is a wasteful number, since it uses less digits than its factorization.

8425043165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28277.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 8425043165 is about 91788.0338878658. The cubic root of 8425043165 is about 2034.8108507817.

The spelling of 8425043165 in words is "eight billion, four hundred twenty-five million, forty-three thousand, one hundred sixty-five".