2056323861 has 16 divisors (see below), whose sum is σ = 3052411200. Its totient is φ = 1368180144.

The previous prime is 2056323823. The next prime is 2056323869. The reversal of 2056323861 is 1683236502.

It is a happy number.

2056323861 is a `hidden beast` number, since 2 + 0 + 563 + 2 + 38 + 61 = 666.

It is not a de Polignac number, because 2056323861 - 2¹³ = 2056315669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056323869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61071 + ... + 88556.

It is an arithmetic number, because the mean of its divisors is an integer number (190775700).

Almost surely, 2^2056323861 is an apocalyptic number.

It is an amenable number.

2056323861 is a deficient number, since it is larger than the sum of its proper divisors (996087339).

2056323861 is a wasteful number, since it uses less digits than its factorization.

2056323861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150145 (or 150139 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2056323861 is about 45346.7072784783. The cubic root of 2056323861 is about 1271.6389984363.

The spelling of 2056323861 in words is "two billion, fifty-six million, three hundred twenty-three thousand, eight hundred sixty-one".