6534249785 has 16 divisors (see below), whose sum is σ = 9045012096. Its totient is φ = 4438750848.

The previous prime is 6534249769. The next prime is 6534249851. The reversal of 6534249785 is 5879424356.

It is not a de Polignac number, because 6534249785 - 2⁴ = 6534249769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868652 + ... + 876141.

It is an arithmetic number, because the mean of its divisors is an integer number (565313256).

Almost surely, 2^6534249785 is an apocalyptic number.

It is an amenable number.

6534249785 is a deficient number, since it is larger than the sum of its proper divisors (2510762311).

6534249785 is a wasteful number, since it uses less digits than its factorization.

6534249785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744912.

The product of its digits is 7257600, while the sum is 53.

The square root of 6534249785 is about 80834.7065622187. The cubic root of 6534249785 is about 1869.5277277822.

The spelling of 6534249785 in words is "six billion, five hundred thirty-four million, two hundred forty-nine thousand, seven hundred eighty-five".