10785861025 has 9 divisors (see below), whose sum is σ = 13375111603. Its totient is φ = 8628273400.

The previous prime is 10785861013. The next prime is 10785861049. The reversal of 10785861025 is 52016858701.

The square root of 10785861025 is 103855.

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

It can be written as a sum of positive squares in only one way, i.e., 3882909969 + 6902951056 = 62313^2 + 83084^2 .

It is not a de Polignac number, because 10785861025 - 2¹¹ = 10785858977 is a prime.

It is a super-2 number, since 2×10785861025² (a number of 21 digits) contains 22 as substring.

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, 508890 + ... + 529660.

Almost surely, 2^10785861025 is an apocalyptic number.

10785861025 is the 103855-th square number.

10785861025 is the 51928-th centered octagonal number.

It is an amenable number.

10785861025 is a deficient number, since it is larger than the sum of its proper divisors (2589250578).

10785861025 is an frugal number, since it uses more digits than its factorization.

10785861025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41552 (or 20776 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 43.

The spelling of 10785861025 in words is "ten billion, seven hundred eighty-five million, eight hundred sixty-one thousand, twenty-five".