2051773279 has 2 divisors, whose sum is σ = 2051773280. Its totient is φ = 2051773278.

The previous prime is 2051773277. The next prime is 2051773289. The reversal of 2051773279 is 9723771502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2051773279 - 2¹ = 2051773277 is a prime.

Together with 2051773277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051773277) 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, 1025886639 + 1025886640.

It is an arithmetic number, because the mean of its divisors is an integer number (1025886640).

Almost surely, 2^2051773279 is an apocalyptic number.

2051773279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051773279 is an equidigital number, since it uses as much as digits as its factorization.

2051773279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 2051773279 is about 45296.5040483258. The cubic root of 2051773279 is about 1270.7002728627.

The spelling of 2051773279 in words is "two billion, fifty-one million, seven hundred seventy-three thousand, two hundred seventy-nine".