6353535985 has 12 divisors (see below), whose sum is σ = 7970147892. Its totient is φ = 4861834208.

The previous prime is 6353535973. The next prime is 6353536037. The reversal of 6353535985 is 5895353536.

It can be written as a sum of positive squares in 2 ways, for example, as 3720512016 + 2633023969 = 60996^2 + 51313^2 .

It is not a de Polignac number, because 6353535985 - 2²³ = 6345147377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 1198402 + ... + 1203691.

It is an arithmetic number, because the mean of its divisors is an integer number (664178991).

Almost surely, 2^6353535985 is an apocalyptic number.

It is an amenable number.

6353535985 is a deficient number, since it is larger than the sum of its proper divisors (1616611907).

6353535985 is a wasteful number, since it uses less digits than its factorization.

6353535985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402144 (or 2402121 counting only the distinct ones).

The product of its digits is 7290000, while the sum is 52.

The square root of 6353535985 is about 79709.0709078960. The cubic root of 6353535985 is about 1852.1315567276.

The spelling of 6353535985 in words is "six billion, three hundred fifty-three million, five hundred thirty-five thousand, nine hundred eighty-five".