219028680025 has 9 divisors (see below), whose sum is σ = 271598464893. Its totient is φ = 175221072000.

The previous prime is 219028679971. The next prime is 219028680041. The reversal of 219028680025 is 520086820912.

The square root of 219028680025 is 468005.

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 47867751369 + 171160928656 = 218787^2 + 413716^2 .

It is not a de Polignac number, because 219028680025 - 2¹³ = 219028671833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2293225 + ... + 2386825.

Almost surely, 2^219028680025 is an apocalyptic number.

219028680025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

219028680025 is the 468005-th square number.

219028680025 is the 234003-rd centered octagonal number.

It is an amenable number.

219028680025 is a deficient number, since it is larger than the sum of its proper divisors (52569784868).

219028680025 is an frugal number, since it uses more digits than its factorization.

219028680025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187212 (or 93606 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 219028680025 in words is "two hundred nineteen billion, twenty-eight million, six hundred eighty thousand, twenty-five".