2856456505684 has 12 divisors (see below), whose sum is σ = 5171171260500. Its totient is φ = 1378979002688.

The previous prime is 2856456505667. The next prime is 2856456505687. The reversal of 2856456505684 is 4865056546582.

It can be written as a sum of positive squares in 2 ways, for example, as 1524805128900 + 1331651376784 = 1234830^2 + 1153972^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856456505687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12312312409 + ... + 12312312640.

It is an arithmetic number, because the mean of its divisors is an integer number (430930938375).

Almost surely, 2^{2856456505684} is an apocalyptic number.

It is an amenable number.

2856456505684 is a deficient number, since it is larger than the sum of its proper divisors (2314714754816).

2856456505684 is a wasteful number, since it uses less digits than its factorization.

2856456505684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24624625082 (or 24624625080 counting only the distinct ones).

The product of its (nonzero) digits is 276480000, while the sum is 64.

The spelling of 2856456505684 in words is "two trillion, eight hundred fifty-six billion, four hundred fifty-six million, five hundred five thousand, six hundred eighty-four".