2057645267 has 2 divisors, whose sum is σ = 2057645268. Its totient is φ = 2057645266.

The previous prime is 2057645263. The next prime is 2057645273. The reversal of 2057645267 is 7625467502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2057645267 - 2² = 2057645263 is a prime.

It is not a weakly prime, because it can be changed into another prime (2057645263) by changing a digit.

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 as a sum of consecutive naturals, namely, 1028822633 + 1028822634.

It is an arithmetic number, because the mean of its divisors is an integer number (1028822634).

Almost surely, 2^2057645267 is an apocalyptic number.

2057645267 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057645267 is an equidigital number, since it uses as much as digits as its factorization.

2057645267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 44.

The square root of 2057645267 is about 45361.2749710587. The cubic root of 2057645267 is about 1271.9113277174.

The spelling of 2057645267 in words is "two billion, fifty-seven million, six hundred forty-five thousand, two hundred sixty-seven".