10851786582025 has 9 divisors (see below), whose sum is σ = 13456235785813. Its totient is φ = 8681416088800.

The previous prime is 10851786581983. The next prime is 10851786582041. The reversal of 10851786582025 is 52028568715801.

It is a happy number.

The square root of 10851786582025 is 3294205.

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 1542233645689 + 9309552936336 = 1241867^2 + 3051156^2 .

It is not a de Polignac number, because 10851786582025 - 2⁹ = 10851786581513 is a prime.

It is a super-2 number, since 2×10851786582025² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16141605 + ... + 16800445.

Almost surely, 2^{10851786582025} is an apocalyptic number.

10851786582025 is the 3294205-th square number.

10851786582025 is the 1647103-rd centered octagonal number.

It is an amenable number.

10851786582025 is a deficient number, since it is larger than the sum of its proper divisors (2604449203788).

10851786582025 is an frugal number, since it uses more digits than its factorization.

10851786582025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317692 (or 658846 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 58.

The spelling of 10851786582025 in words is "ten trillion, eight hundred fifty-one billion, seven hundred eighty-six million, five hundred eighty-two thousand, twenty-five".