3813785585 has 8 divisors (see below), whose sum is σ = 4580424936. Its totient is φ = 3048440320.

The previous prime is 3813785567. The next prime is 3813785603. The reversal of 3813785585 is 5855873183.

It is an interprime number because it is at equal distance from previous prime (3813785567) and next prime (3813785603).

It can be written as a sum of positive squares in 4 ways, for example, as 1575454864 + 2238330721 = 39692^2 + 47311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3813785585 - 2⁸ = 3813785329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317024 + ... + 328833.

It is an arithmetic number, because the mean of its divisors is an integer number (572553117).

Almost surely, 2^3813785585 is an apocalyptic number.

It is an amenable number.

3813785585 is a deficient number, since it is larger than the sum of its proper divisors (766639351).

3813785585 is a wasteful number, since it uses less digits than its factorization.

3813785585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647043.

The product of its digits is 4032000, while the sum is 53.

The square root of 3813785585 is about 61755.8546617242. The cubic root of 3813785585 is about 1562.3755152879.

The spelling of 3813785585 in words is "three billion, eight hundred thirteen million, seven hundred eighty-five thousand, five hundred eighty-five".