3539812856 has 16 divisors (see below), whose sum is σ = 6639082800. Its totient is φ = 1769390784.

The previous prime is 3539812853. The next prime is 3539812867. The reversal of 3539812856 is 6582189353.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3539812853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34460 + ... + 90923.

It is an arithmetic number, because the mean of its divisors is an integer number (414942675).

Almost surely, 2^3539812856 is an apocalyptic number.

It is an amenable number.

3539812856 is a deficient number, since it is larger than the sum of its proper divisors (3099269944).

3539812856 is a wasteful number, since it uses less digits than its factorization.

3539812856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128918 (or 128914 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 50.

The square root of 3539812856 is about 59496.3264076027. The cubic root of 3539812856 is about 1524.0297124061.

The spelling of 3539812856 in words is "three billion, five hundred thirty-nine million, eight hundred twelve thousand, eight hundred fifty-six".