8815487805 has 12 divisors (see below), whose sum is σ = 15280178940. Its totient is φ = 4701593472.

The previous prime is 8815487801. The next prime is 8815487809. The reversal of 8815487805 is 5087845188.

8815487805 is a `hidden beast` number, since 8 + 81 + 5 + 487 + 80 + 5 = 666.

8815487805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8815487801) and next prime (8815487809).

It can be written as a sum of positive squares in 2 ways, for example, as 1436334201 + 7379153604 = 37899^2 + 85902^2 .

It is not a de Polignac number, because 8815487805 - 2² = 8815487801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8815487801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97949820 + ... + 97949909.

It is an arithmetic number, because the mean of its divisors is an integer number (1273348245).

Almost surely, 2^8815487805 is an apocalyptic number.

It is an amenable number.

8815487805 is a deficient number, since it is larger than the sum of its proper divisors (6464691135).

8815487805 is a wasteful number, since it uses less digits than its factorization.

8815487805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195899740 (or 195899737 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 54.

The square root of 8815487805 is about 93890.8291847505. The cubic root of 8815487805 is about 2065.7707144680.

The spelling of 8815487805 in words is "eight billion, eight hundred fifteen million, four hundred eighty-seven thousand, eight hundred five".