3120857894025 has 27 divisors (see below), whose sum is σ = 5589850713109. Its totient is φ = 1664443410720.

The previous prime is 3120857894017. The next prime is 3120857894041. The reversal of 3120857894025 is 5204987580213.

The square root of 3120857894025 is 1766595.

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

3120857894025 is a `hidden beast` number, since 3 + 1 + 2 + 0 + 8 + 578 + 9 + 40 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 359650884681 + 2761207009344 = 599709^2 + 1661688^2 .

It is not a de Polignac number, because 3120857894025 - 2³ = 3120857894017 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 26 ways as a sum of consecutive naturals, for example, 26440039 + ... + 26557811.

Almost surely, 2^{3120857894025} is an apocalyptic number.

3120857894025 is the 1766595-th square number.

3120857894025 is the 883298-th centered octagonal number.

It is an amenable number.

3120857894025 is a deficient number, since it is larger than the sum of its proper divisors (2468992819084).

3120857894025 is an frugal number, since it uses more digits than its factorization.

3120857894025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235562 (or 117781 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 3120857894025 in words is "three trillion, one hundred twenty billion, eight hundred fifty-seven million, eight hundred ninety-four thousand, twenty-five".