2005857340463 has 2 divisors, whose sum is σ = 2005857340464. Its totient is φ = 2005857340462.

The previous prime is 2005857340457. The next prime is 2005857340477. The reversal of 2005857340463 is 3640437585002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2005857340463 - 2³⁰ = 2004783598639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005857340453) 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, 1002928670231 + 1002928670232.

It is an arithmetic number, because the mean of its divisors is an integer number (1002928670232).

Almost surely, 2^{2005857340463} is an apocalyptic number.

2005857340463 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005857340463 is an equidigital number, since it uses as much as digits as its factorization.

2005857340463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 2005857340463 in words is "two trillion, five billion, eight hundred fifty-seven million, three hundred forty thousand, four hundred sixty-three".