2056974779 has 2 divisors, whose sum is σ = 2056974780. Its totient is φ = 2056974778.

The previous prime is 2056974767. The next prime is 2056974793. The reversal of 2056974779 is 9774796502.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2056974779 is a prime.

It is a super-2 number, since 2×2056974779² = 8462290482884197682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2056974749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028487389 + 1028487390.

It is an arithmetic number, because the mean of its divisors is an integer number (1028487390).

Almost surely, 2^2056974779 is an apocalyptic number.

2056974779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056974779 is an equidigital number, since it uses as much as digits as its factorization.

2056974779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6667920, while the sum is 56.

The square root of 2056974779 is about 45353.8838358966. The cubic root of 2056974779 is about 1271.7731610564.

The spelling of 2056974779 in words is "two billion, fifty-six million, nine hundred seventy-four thousand, seven hundred seventy-nine".