188047986025 has 9 divisors (see below), whose sum is σ = 233182191301. Its totient is φ = 150436654240.

The previous prime is 188047985959. The next prime is 188047986079. The reversal of 188047986025 is 520689740881.

It is a happy number.

The square root of 188047986025 is 433645.

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 458516569 + 187589469456 = 21413^2 + 433116^2 .

It is a de Polignac number, because none of the positive numbers 2^k-188047986025 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 (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2124861 + ... + 2211589.

Almost surely, 2^188047986025 is an apocalyptic number.

188047986025 is the 433645-th square number.

188047986025 is the 216823-rd centered octagonal number.

It is an amenable number.

188047986025 is a deficient number, since it is larger than the sum of its proper divisors (45134205276).

188047986025 is an frugal number, since it uses more digits than its factorization.

188047986025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173468 (or 86734 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 58.

The spelling of 188047986025 in words is "one hundred eighty-eight billion, forty-seven million, nine hundred eighty-six thousand, twenty-five".