109498539864025 has 243 divisors, whose sum is σ = 160178204261061. Its totient is φ = 74208773583360.

The previous prime is 109498539864023. The next prime is 109498539864031. The reversal of 109498539864025 is 520468935894901.

The square root of 109498539864025 is 10464155.

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

It can be written as a sum of positive squares in 40 ways, for example, as 89388194248089 + 20110345615936 = 9454533^2 + 4484456^2 .

It is not a de Polignac number, because 109498539864025 - 2¹ = 109498539864023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109498539864023) by changing a digit.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 478159562611 + ... + 478159562839.

Almost surely, 2^{109498539864025} is an apocalyptic number.

109498539864025 is the 10464155-th square number.

109498539864025 is the 5232078-th centered octagonal number.

It is an amenable number.

109498539864025 is a deficient number, since it is larger than the sum of its proper divisors (50679664397036).

109498539864025 is an equidigital number, since it uses as much as digits as its factorization.

109498539864025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 671846400, while the sum is 73.

The spelling of 109498539864025 in words is "one hundred nine trillion, four hundred ninety-eight billion, five hundred thirty-nine million, eight hundred sixty-four thousand, twenty-five".