4003785604613 has 2 divisors, whose sum is σ = 4003785604614. Its totient is φ = 4003785604612.

The previous prime is 4003785604583. The next prime is 4003785604631. The reversal of 4003785604613 is 3164065873004.

4003785604613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (4003785604631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2428414205569 + 1575371399044 = 1558337^2 + 1255138^2 .

It is a cyclic number.

It is not a de Polignac number, because 4003785604613 - 2¹⁰ = 4003785603589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4003755604613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001892802306 + 2001892802307.

It is an arithmetic number, because the mean of its divisors is an integer number (2001892802307).

Almost surely, 2^{4003785604613} is an apocalyptic number.

It is an amenable number.

4003785604613 is a deficient number, since it is larger than the sum of its proper divisors (1).

4003785604613 is an equidigital number, since it uses as much as digits as its factorization.

4003785604613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 4003785604613 in words is "four trillion, three billion, seven hundred eighty-five million, six hundred four thousand, six hundred thirteen".