986178094225 has 9 divisors (see below), whose sum is σ = 1222866993873. Its totient is φ = 788938503120.

The previous prime is 986178094171. The next prime is 986178094241. The reversal of 986178094225 is 522490871689.

The square root of 986178094225 is 993065.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 140469792849 + 845708301376 = 374793^2 + 919624^2 .

It is not a de Polignac number, because 986178094225 - 2⁹ = 986178093713 is a prime.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 4866019 + ... + 5064631.

Almost surely, 2^986178094225 is an apocalyptic number.

986178094225 is the 993065-th square number.

986178094225 is the 496533-rd centered octagonal number.

It is an amenable number.

986178094225 is a deficient number, since it is larger than the sum of its proper divisors (236688899648).

986178094225 is an frugal number, since it uses more digits than its factorization.

986178094225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397236 (or 198618 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 986178094225 in words is "nine hundred eighty-six billion, one hundred seventy-eight million, ninety-four thousand, two hundred twenty-five".