8275866645 has 64 divisors (see below), whose sum is σ = 14582709504. Its totient is φ = 3990712320.

The previous prime is 8275866617. The next prime is 8275866667. The reversal of 8275866645 is 5466685728.

It is not a de Polignac number, because 8275866645 - 2⁶ = 8275866581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 662679 + ... + 675051.

It is an arithmetic number, because the mean of its divisors is an integer number (227854836).

Almost surely, 2^8275866645 is an apocalyptic number.

8275866645 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8275866645 is a deficient number, since it is larger than the sum of its proper divisors (6306842859).

8275866645 is a wasteful number, since it uses less digits than its factorization.

8275866645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12502.

The product of its digits is 19353600, while the sum is 57.

The square root of 8275866645 is about 90971.7903803151. The cubic root of 8275866645 is about 2022.7295913480.

The spelling of 8275866645 in words is "eight billion, two hundred seventy-five million, eight hundred sixty-six thousand, six hundred forty-five".