8815618922725 has 12 divisors (see below), whose sum is σ = 10931553209700. Its totient is φ = 7052375302400.

The previous prime is 8815618922717. The next prime is 8815618922731. The reversal of 8815618922725 is 5272298165188.

It can be written as a sum of positive squares in 6 ways, for example, as 3069132587236 + 5746486335489 = 1751894^2 + 2397183^2 .

It is not a de Polignac number, because 8815618922725 - 2³ = 8815618922717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1480150 + ... + 4452199.

It is an arithmetic number, because the mean of its divisors is an integer number (910962767475).

Almost surely, 2^{8815618922725} is an apocalyptic number.

It is an amenable number.

8815618922725 is a deficient number, since it is larger than the sum of its proper divisors (2115934286975).

8815618922725 is a wasteful number, since it uses less digits than its factorization.

8815618922725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991800 (or 5991795 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 64.

The spelling of 8815618922725 in words is "eight trillion, eight hundred fifteen billion, six hundred eighteen million, nine hundred twenty-two thousand, seven hundred twenty-five".