2051845867 has 2 divisors, whose sum is σ = 2051845868. Its totient is φ = 2051845866.

The previous prime is 2051845819. The next prime is 2051845897. The reversal of 2051845867 is 7685481502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2051845867 - 2¹¹ = 2051843819 is a prime.

It is not a weakly prime, because it can be changed into another prime (2051845897) by changing a digit.

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 as a sum of consecutive naturals, namely, 1025922933 + 1025922934.

It is an arithmetic number, because the mean of its divisors is an integer number (1025922934).

Almost surely, 2^2051845867 is an apocalyptic number.

2051845867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051845867 is an equidigital number, since it uses as much as digits as its factorization.

2051845867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 46.

The square root of 2051845867 is about 45297.3052951277. The cubic root of 2051845867 is about 1270.7152577061.

The spelling of 2051845867 in words is "two billion, fifty-one million, eight hundred forty-five thousand, eight hundred sixty-seven".