8775961645 has 16 divisors (see below), whose sum is σ = 11768742720. Its totient is φ = 6226844800.

The previous prime is 8775961637. The next prime is 8775961681. The reversal of 8775961645 is 5461695778.

It is not a de Polignac number, because 8775961645 - 2³ = 8775961637 is a prime.

It is a super-3 number, since 3×8775961645³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 8775961645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1943635 + ... + 1948144.

It is an arithmetic number, because the mean of its divisors is an integer number (735546420).

Almost surely, 2^8775961645 is an apocalyptic number.

It is an amenable number.

8775961645 is a deficient number, since it is larger than the sum of its proper divisors (2992781075).

8775961645 is a wasteful number, since it uses less digits than its factorization.

8775961645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891836.

The product of its digits is 12700800, while the sum is 58.

The square root of 8775961645 is about 93680.1027166388. The cubic root of 8775961645 is about 2062.6786441895.

The spelling of 8775961645 in words is "eight billion, seven hundred seventy-five million, nine hundred sixty-one thousand, six hundred forty-five".