8779858805 has 4 divisors (see below), whose sum is σ = 10535830572. Its totient is φ = 7023887040.

The previous prime is 8779858783. The next prime is 8779858831. The reversal of 8779858805 is 5088589778.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1969318129 + 6810540676 = 44377^2 + 82526^2 .

It is not a de Polignac number, because 8779858805 - 2¹² = 8779854709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877985876 + ... + 877985885.

It is an arithmetic number, because the mean of its divisors is an integer number (2633957643).

Almost surely, 2^8779858805 is an apocalyptic number.

It is an amenable number.

8779858805 is a deficient number, since it is larger than the sum of its proper divisors (1755971767).

8779858805 is a wasteful number, since it uses less digits than its factorization.

8779858805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755971766.

The product of its (nonzero) digits is 45158400, while the sum is 65.

The square root of 8779858805 is about 93700.9007694163. The cubic root of 8779858805 is about 2062.9839250396.

The spelling of 8779858805 in words is "eight billion, seven hundred seventy-nine million, eight hundred fifty-eight thousand, eight hundred five".