8817512485 has 32 divisors (see below), whose sum is σ = 11471131872. Its totient is φ = 6482042880.

The previous prime is 8817512471. The next prime is 8817512531. The reversal of 8817512485 is 5842157188.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 3461321889 + 5356190596 = 58833^2 + 73186^2 .

It is not a de Polignac number, because 8817512485 - 2⁵ = 8817512453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 704139 + ... + 716551.

It is an arithmetic number, because the mean of its divisors is an integer number (358472871).

Almost surely, 2^8817512485 is an apocalyptic number.

8817512485 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8817512485 is a deficient number, since it is larger than the sum of its proper divisors (2653619387).

8817512485 is a wasteful number, since it uses less digits than its factorization.

8817512485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12633.

The product of its digits is 716800, while the sum is 49.

The square root of 8817512485 is about 93901.6106624375. The cubic root of 8817512485 is about 2065.9288529844.

The spelling of 8817512485 in words is "eight billion, eight hundred seventeen million, five hundred twelve thousand, four hundred eighty-five".