8775945645 has 32 divisors (see below), whose sum is σ = 14108236032. Its totient is φ = 4658314752.

The previous prime is 8775945593. The next prime is 8775945679. The reversal of 8775945645 is 5465495778.

It is a happy number.

It is not a de Polignac number, because 8775945645 - 2⁷ = 8775945517 is a prime.

It is a super-3 number, since 3×8775945645³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4539099 + ... + 4541031.

It is an arithmetic number, because the mean of its divisors is an integer number (440882376).

Almost surely, 2^8775945645 is an apocalyptic number.

It is an amenable number.

8775945645 is a deficient number, since it is larger than the sum of its proper divisors (5332290387).

8775945645 is a wasteful number, since it uses less digits than its factorization.

8775945645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221.

The product of its digits is 42336000, while the sum is 60.

The square root of 8775945645 is about 93680.0173195970. The cubic root of 8775945645 is about 2062.6773906563.

The spelling of 8775945645 in words is "eight billion, seven hundred seventy-five million, nine hundred forty-five thousand, six hundred forty-five".