4209780556853 has 2 divisors, whose sum is σ = 4209780556854. Its totient is φ = 4209780556852.

The previous prime is 4209780556799. The next prime is 4209780556871. The reversal of 4209780556853 is 3586550879024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2673427743844 + 1536352813009 = 1635062^2 + 1239497^2 .

It is a cyclic number.

It is not a de Polignac number, because 4209780556853 - 2¹⁶ = 4209780491317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4209780586853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2104890278426 + 2104890278427.

It is an arithmetic number, because the mean of its divisors is an integer number (2104890278427).

Almost surely, 2^{4209780556853} is an apocalyptic number.

It is an amenable number.

4209780556853 is a deficient number, since it is larger than the sum of its proper divisors (1).

4209780556853 is an equidigital number, since it uses as much as digits as its factorization.

4209780556853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576000, while the sum is 62.

The spelling of 4209780556853 in words is "four trillion, two hundred nine billion, seven hundred eighty million, five hundred fifty-six thousand, eight hundred fifty-three".