9119826209025 has 135 divisors (see below), whose sum is σ = 19653173007699. Its totient is φ = 4168628543520.

The previous prime is 9119826208979. The next prime is 9119826209047. The reversal of 9119826209025 is 5209026289119.

The square root of 9119826209025 is 3019905.

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

9119826209025 is a `hidden beast` number, since 9 + 1 + 1 + 9 + 8 + 2 + 620 + 9 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3283137435249 + 5836688773776 = 1811943^2 + 2415924^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is not a de Polignac number, because 9119826209025 - 2⁷ = 9119826208897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 951265282 + ... + 951274868.

Almost surely, 2^{9119826209025} is an apocalyptic number.

9119826209025 is the 3019905-th square number.

9119826209025 is the 1509953-rd centered octagonal number.

It is an amenable number.

9119826209025 is an abundant number, since it is smaller than the sum of its proper divisors (10533346798674).

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

9119826209025 is an frugal number, since it uses more digits than its factorization.

9119826209025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19210 (or 9602 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 9119826209025 in words is "nine trillion, one hundred nineteen billion, eight hundred twenty-six million, two hundred nine thousand, twenty-five".