385004623853 has 2 divisors, whose sum is σ = 385004623854. Its totient is φ = 385004623852.

The previous prime is 385004623831. The next prime is 385004623891. The reversal of 385004623853 is 358326400583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327364776964 + 57639846889 = 572158^2 + 240083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385004623853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385004623798 and 385004623807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385004623813) 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, 192502311926 + 192502311927.

It is an arithmetic number, because the mean of its divisors is an integer number (192502311927).

Almost surely, 2^385004623853 is an apocalyptic number.

It is an amenable number.

385004623853 is a deficient number, since it is larger than the sum of its proper divisors (1).

385004623853 is an equidigital number, since it uses as much as digits as its factorization.

385004623853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 385004623853 in words is "three hundred eighty-five billion, four million, six hundred twenty-three thousand, eight hundred fifty-three".