8235123645 has 32 divisors (see below), whose sum is σ = 15066501120. Its totient is φ = 3762630720.

The previous prime is 8235123613. The next prime is 8235123661. The reversal of 8235123645 is 5463215328.

It is a happy number.

It is not a de Polignac number, because 8235123645 - 2⁵ = 8235123613 is a prime.

It is a super-2 number, since 2×8235123645² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187980 + ... + 227610.

It is an arithmetic number, because the mean of its divisors is an integer number (470828160).

Almost surely, 2^8235123645 is an apocalyptic number.

It is an amenable number.

8235123645 is a deficient number, since it is larger than the sum of its proper divisors (6831377475).

8235123645 is a wasteful number, since it uses less digits than its factorization.

8235123645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41625.

The product of its digits is 172800, while the sum is 39.

The square root of 8235123645 is about 90747.5820339033. The cubic root of 8235123645 is about 2019.4047559111.

The spelling of 8235123645 in words is "eight billion, two hundred thirty-five million, one hundred twenty-three thousand, six hundred forty-five".