2057778727 has 2 divisors, whose sum is σ = 2057778728. Its totient is φ = 2057778726.

The previous prime is 2057778713. The next prime is 2057778733. The reversal of 2057778727 is 7278777502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2057778727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2057778227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028889363 + 1028889364.

It is an arithmetic number, because the mean of its divisors is an integer number (1028889364).

Almost surely, 2^2057778727 is an apocalyptic number.

2057778727 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057778727 is an equidigital number, since it uses as much as digits as its factorization.

2057778727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2689120, while the sum is 52.

The square root of 2057778727 is about 45362.7460257864. The cubic root of 2057778727 is about 1271.9388260782.

The spelling of 2057778727 in words is "two billion, fifty-seven million, seven hundred seventy-eight thousand, seven hundred twenty-seven".