986019210225 has 189 divisors, whose sum is σ = 2071143481953. Its totient is φ = 448416138240.

The previous prime is 986019210193. The next prime is 986019210263. The reversal of 986019210225 is 522012910689.

It is a happy number.

The square root of 986019210225 is 992985.

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

986019210225 is a `hidden beast` number, since 9 + 8 + 601 + 9 + 2 + 10 + 2 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 158581557729 + 827437652496 = 398223^2 + 909636^2 .

It is not a de Polignac number, because 986019210225 - 2⁵ = 986019210193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 5108907729 + ... + 5108907921.

Almost surely, 2^986019210225 is an apocalyptic number.

986019210225 is the 992985-th square number.

986019210225 is the 496493-rd centered octagonal number.

It is an amenable number.

986019210225 is an abundant number, since it is smaller than the sum of its proper divisors (1085124271728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

986019210225 is an frugal number, since it uses more digits than its factorization.

986019210225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 986019210225 in words is "nine hundred eighty-six billion, nineteen million, two hundred ten thousand, two hundred twenty-five".