2056445465947 has 2 divisors, whose sum is σ = 2056445465948. Its totient is φ = 2056445465946.

The previous prime is 2056445465941. The next prime is 2056445465999. The reversal of 2056445465947 is 7495645446502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2056445465947 - 2⁷ = 2056445465819 is a prime.

It is not a weakly prime, because it can be changed into another prime (2056445465941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028222732973 + 1028222732974.

It is an arithmetic number, because the mean of its divisors is an integer number (1028222732974).

Almost surely, 2^{2056445465947} is an apocalyptic number.

2056445465947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056445465947 is an equidigital number, since it uses as much as digits as its factorization.

2056445465947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152000, while the sum is 61.

The spelling of 2056445465947 in words is "two trillion, fifty-six billion, four hundred forty-five million, four hundred sixty-five thousand, nine hundred forty-seven".